'' ER'' is an American drama series that aired on

NBC The National Broadcasting Company (NBC) is an Television in the United States, American English-language Commercial broadcasting, commercial television network, broadcast television and radio network. The flagship property of the NBC Enterta ...

from September 19, 1994, until April 2, 2009. The series featured a large

ensemble cast In a dramatic production, an ensemble cast is one that is composed of multiple principal actors and performers who are typically assigned roughly equal amounts of screen time.Random House: ensemble acting Linked 2013-07-17 Structure In contrast to ...

that changed dramatically over its long run. The main cast was augmented by a wealth of recurring characters and award-winning guest stars.

Main cast

The original starring cast consisted of Anthony Edwards as

Dr. Mark Greene Mark Greene, M.D. is a fictional character from the American medical drama series '' ER,'' portrayed by actor Anthony Edwards. He first appears in the series' pilot episode, and subsequently appeared as one of the principal characters until ...

George Clooney George Timothy Clooney (born May 6, 1961) is an American actor and filmmaker. He is the recipient of List of awards and nominations received by George Clooney, numerous accolades, including a British Academy Film Awards, British Academy Film A ...

as Dr. Douglas "Doug" Ross,

Sherry Stringfield Sherry Lea Stringfield (born June 24, 1967) is an American actress. She is best known for playing the role of Dr. Susan Lewis on the NBC medical drama '' ER'', a role for which she received three Emmy Award nominations. Stringfield was a member ...

as Dr. Susan Lewis,

Noah Wyle Noah Strausser Speer Wyle (; born June 4, 1971) is an American actor. He is best known for his role as John Carter (ER), John Carter in the television series ''ER (TV series), ER'' (1994–2009), which earned him nominations for three Golden Glo ...

as medical student (later Dr.) John Carter, and

Eriq La Salle Erik Ki La Salle (born July 23, 1962), professionally known as Eriq La Salle, is an American actor, director, writer and producer. La Salle is best known for his performance in the film ''Coming to America'' (1988) and especially as Dr. Peter ...

as Dr. Peter Benton.

Julianna Margulies Julianna Margulies (; born June 8, 1966) is an American actress. After several small television roles, Margulies achieved wide recognition for her starring role as Carol Hathaway on NBC's long-running medical drama series '' ER'' (1994–2009), ...

guest starred in the pilot as Nurse Carol Hathaway before becoming part of the regular cast. The first additions to the main cast came in Season 2 with

Gloria Reuben Gloria Elizabeth Reuben is a Canadian-American actress, producer, and singer. She is well-known for her role as Jeanie Boulet on the medical drama ''ER (TV series), ER'' (1995–1999, 2008), for which she was twice nominated for an Emmy Award, a ...

signing on as Physician Assistant

Jeanie Boulet Jeanie Boulet is a fictional character from the television series '' ER''. The role was portrayed by Gloria Reuben who debuted as a recurring character in the first season episode, "Long Day's Journey", aired on January 19, 1995. Reuben was promo ...

(recurring character in Season 1), and in Season 3 with

Laura Innes Laura Elizabeth Innes (born August 16, 1957) is an American actress and television director. She starred as Dr. Kerry Weaver in the NBC medical drama '' ER'' from 1995 to 2007 and reprised her role from 2008 to 2009 in the final season. She also ...

Dr. Kerry Weaver Kerry Weaver is a fictional character from the NBC television series '' ER''. The role was portrayed by Laura Innes who debuted as a recurring character in the second season episode "Welcome Back, Carter!", which aired on September 21, 1995. I ...

(recurring character in Season 2). In Season 4,

Maria Bello Maria Elena Bello (born April 18, 1967) is an American actress and writer. Her film roles include ''Permanent Midnight'' (1998), ''Payback (1999 film), Payback'' (1999), ''Coyote Ugly (film), Coyote Ugly'' (2000), ''The Cooler'' (2003), ''A Hist ...

signed on as Dr. Anna Del Amico (recurring character at the end of Season 3) and

Alex Kingston Alexandra Elizabeth Kingston (born 11 March 1963) is an English actress. Active from the early 1980s, Kingston became noted for her television work in both Britain and the US in the 1990s, including her regular role as Dr. Elizabeth Corday in ...

joined the cast as Dr. Elizabeth Corday. Season 5 saw the addition of

Kellie Martin Kellie Martin (born October 16, 1975) is an American actress. She is known for her roles as Rebecca "Becca" Thatcher in '' Life Goes On'' (1989–1993), Lucy Knight on '' ER'' (1998–2000), Samantha Kinsey in the ''Mystery Woman'' TV film serie ...

as medical student

Lucy Knight Lucy Knight is a fictional character In the NBC television series '' ER'', portrayed by actress Kellie Martin. The character was part of the show for the fifth and sixth seasons. When she was first introduced on '' ER'', Dr. Doug Ross called her a ...

. George Clooney's departure towards the end of Season 5 started a major cycle of main cast changes over the next few years. Season 6 opened with the addition of

Paul McCrane Paul David McCrane (born January 19, 1961) is an American film, television and theatre actor, as well as a television director and singer. He is known for his portrayal of Montgomery MacNeil in the 1980 film '' Fame'', Frank Berry in the 1984 fil ...

as Dr. Robert "Rocket" Romano (recurring character in both Seasons 4 and 5), Croatian actor

Goran Visnjic Goran may refer to: Ethnic groups *Gorane, or Goran, an ethnic group of northern Africa *Goran (Kurdish tribe), an ethnic group of the Middle East *Gorani (ethnic group), an ethnic group of the southeastern Europe Other uses *Göran, a Swedis ...

as Dr. Luka Kovač, and

Michael Michele Michael Michele Williams (born August 30, 1966) is an American actress and fashion designer. She began her career on stage before appearing opposite Wesley Snipes in the 1991 film ''New Jack City''. In the 1990s, Michele had leading roles in tw ...

as Dr. Cleo Finch. A bit later in the season

Erik Palladino Erik Palladino (born May 10, 1968) is an American actor known for his portrayal of Dr. Dave Malucci in the NBC medical drama '' ER''. He is also known for his recurring roles as Lt. Michael Daghlian in ''Joan of Arcadia'', Vostanik Sabatino in ...

joined as Dr. Dave Malucci, and

Ming-Na Ming-Na Wen (; born November 20, 1963) is an American actress and model. She voiced Mulan in the animated film ''Mulan'' and its sequel, portrayed Melinda May / The Cavalry in '' Marvel's Agents of S.H.I.E.L.D.'' (2013–2020), and Fennec Sha ...

returned to the series as Dr. Jing-Mei "Deb" Chen, reprising a recurring character she portrayed in Season 1. Soon after,

Maura Tierney Maura Therese Tierney (born February 3, 1965) is an American film, stage, and television actress. She is best known for her roles as Lisa Miller on the sitcom ''NewsRadio'' (1995–1999), Abby Lockhart on the medical drama '' ER'' (1999–2009), ...

was added as Nurse (later Dr.) Abigail "Abby" Lockhart. Season 8 saw the arrival of

Sharif Atkins Sharif Atkins (born January 29, 1975) is an American actor. He is best known for his role as Dr. Michael Gallant on '' ER'' and for his role as FBI Agent Clinton Jones on '' White Collar''. Early life Atkins was born in Pittsburgh, Pennsylva ...

as medical student (later Dr.)

Michael Gallant ''ER'' is an American medical drama television series created by novelist and physician Michael Crichton that aired on NBC from September 19, 1994, to April 2, 2009, with a total of 331 episodes spanning 15 seasons. It was produced by Constant ...

, as well as the return of Dr.

Susan Lewis Fictional character Susan Lewis, M.D. is a character from the medical drama series ''ER'', portrayed by American actress Sherry Stringfield. Having appeared as a primary character since the pilot episode, Stringfield left the show part way thro ...

when

reprised her role after having left the series in Season 3.

Mekhi Phifer Mekhi Phifer (; born December 29, 1974) is an American actor. He portrayed Dr. Greg Pratt on NBC's long-running medical drama '' ER'' until 2008 and had a co-starring role opposite actor/rapper Eminem in the 2002 feature film '' 8 Mile''. He was ...

joined the cast in Season 9 as Dr. Gregory "Greg" Pratt (recurring character at the end of Season 8). Season 10 saw the addition of

Parminder Nagra Parminder Kaur Nagra (born 5 October 1975) is a British actress of Indian Punjabi descent and Sikh heritage. She is known for portraying Jess Bhamra in the film ''Bend It Like Beckham'' (2002) and Dr. Neela Rasgotra in the NBC medical drama s ...

as medical student (later Dr.)

Neela Rasgotra Dr. Neela Rasgotra (former married name Gallant) is a fictional character portrayed by Parminder Nagra on the television show '' ER''. Parminder Nagra's addition into the main cast opening credits was in the 3rd episode of season 10. Character ...

and

Linda Cardellini Linda Edna Cardellini (born June 25, 1975) is an American actress. In television, she is known for her leading roles in the teen drama ''Freaks and Geeks'' (1999–2000), the medical drama '' ER'' (2003–09), the drama thriller ''Bloodline'' (2 ...

as Samantha "Sam" Taggart.

Shane West Shannon Bruce Snaith (born June 10, 1978), better known as Shane West, is an American actor, singer, and songwriter. He is known for his portrayal of Eli Sammler in the ABC family drama '' Once and Again'', Landon Carter in ''A Walk to Remember' ...

joined the cast in Season 11 as Ray Barnett and

Scott Grimes Scott Christopher Grimes (born July 9, 1971) is an American actor and singer. Some of his most prominent roles include appearances in the 1984 cult classic ''The Night They Saved Christmas'', '' ER'' as Dr. Archie Morris, ''Party of Five'' as Wil ...

became part of the main cast in Season 12 as Dr. Archie Morris (recurring character in Seasons 10 and 11). Season 13 saw the addition of

John Stamos John Phillip Stamos ( ; born August 19, 1963) is an American actor and musician. He first gained recognition for his contract role as Blackie Parrish on the ABC television soap opera ''General Hospital'', for which he was nominated for the Da ...

as Dr. Tony Gates, reprising a role he had originated in Season 12 when he portrayed Gates the paramedic/medical student. Season 15 saw the final additions to the main cast, with David Lyons signing on as Dr. Simon Brenner (recurring character towards the end of Season 14) and

Angela Bassett Angela Evelyn Bassett (born August 16, 1958) is an American actress. She had her breakthrough with her portrayal of singer Tina Turner in the biopic ''What's Love Got to Do with It'' (1993), which garnered her a nomination for the Academy Award ...

as Dr. Catherine "Cate" Banfield. Notably, of the 26 main cast members that starred throughout ''ER''s 15-season run, only seven were not featured in the final season: Gloria Reuben, Maria Bello, Kellie Martin, Michael Michele, Erik Palladino, Ming-Na, and Sharif Atkins. In addition, only four main cast members never made a return appearance of any type following their original stint: Maria Bello, Kellie Martin, Erik Palladino, and Mekhi Phifer.

Main characters

Timeline of County General Staff

ImageSize = width:800 height:auto barincrement:15 PlotArea = left:100 bottom:200 top:10 right:10 Alignbars = justify DateFormat = mm/dd/yyyy Period = from:09/19/1994 till:05/01/2009 TimeAxis = orientation:horizontal format:mm/dd/yyyy ScaleMajor = unit:year increment:1 start:1995 ScaleMinor = unit:year increment:1 start:09/20/1994 Legend = position:bottom orientation:ver columns:4 Colors = id:student value:rgb(0.1, 0.77, 0.65) legend:Med_Student id:intern value:rgb(0.68, 0.85, 0.90) legend:Intern id:doc value:rgb(0.53, 0.81, 0.98) legend:ER_Resident id:chiefres value:rgb(0.12, 0.56, 1) legend:ER_Chief_Resident id:erfellow value:rgb(0.27, 0.51, 0.71) legend:ER_Fellow id:erattend value:rgb(0, 0, 1) legend:ER_Attending id:erchief value:rgb(0.98, 0.56,0.35) legend:Chief_of_Emergency_Medicine id:surgery value:yellowgreen legend:Surgical_Resident id:sfellow value:drabgreen legend:Surgical_Fellow id:schiefres value:kelleygreen legend:Surgical_Chief_Resident id:sperdiem value:limegreen 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text:"Jane Figler" bar:scanlon text:"Jake Scanlon" bar:clemente text:"Victor Clemente" bar:gates text:"Tony Gates" bar:hope text:"Hope Bobeck" bar:katey text:"Katey Alvaro" bar:maeleepark text:"Mae Lee Park" bar:larryweston text:"Larry Weston" bar:moretti text:"Kevin Moretti" bar:grady text:"Paul Grady" bar:zelinsky text:"Harold Zelinsky" bar:skyewexler text:"Skye Wexler" bar:brenner text:"Simon Brenner" bar:lavernestjohn text:"Laverne St. John" bar:kayamontoya text:"Kaya Montoya" bar:banfield text:"Catherine Banfield" bar:tracymartin text:"Tracy Martin" bar:andrewwade text:"Andrew Wade" bar:dariawade text:"Daria Wade" bar:ryansanchez text:"Ryan Sanchez" bar:chazpratt text:"Chaz Pratt" bar:juliawise text:"Julia Wise" bar:benton text:"Peter Benton" bar:hicks text:"Angela Hicks" bar:edson text:"Dale Edson" bar:gant text:"Dennis Gant" bar:keaton text:"Abby Keaton" bar:corday text:"Elizabeth Corday" bar:dorset text:"Eddie Dorset" bar:lawson text:"Jeremy Lawson" bar:dubenko text:"Lucien 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from:10/19/2006 till:12/06/2007 color:doc bar:lockhart from:01/10/2008 till:01/10/2008 color:doc bar:lockhart from:04/28/2008 till:05/08/2008 color:doc bar:lydia from:09/19/1994 till:10/09/2003 color:nurse bar:maeleepark from:02/22/2007 till:05/10/2007 color:student bar:malucci from:10/05/1999 till:10/11/2001 color:doc bar:morgenstern from:04/09/1998 till:04/23/1998 color:erchief bar:morgenstern from:09/19/1994 till:03/30/1995 color:erchief bar:morgenstern from:09/19/1994 till:03/30/1995 color:schief width:3 bar:morgenstern from:09/21/1995 till:10/02/1997 color:erchief bar:morgenstern from:09/21/1995 till:10/02/1997 color:schief width:3 bar:morris from:05/05/2005 till:09/21/2006 color:chiefres bar:morris from:10/09/2003 till:05/05/2005 color:doc bar:moretti from:05/10/2007 till:11/15/2007 color:erchief bar:nathan from:10/31/2002 till:11/21/2002 color:student bar:penny from:10/06/2005 till:01/12/2006 color:student bar:penny from:10/07/2004 till:01/20/2005 color:student bar:pratt from:03/30/2006 till:09/22/2006 color:doc bar:pratt from:04/04/2002 till:07/01/2002 color:intern bar:pratt from:05/16/2003 till:05/13/2004 color:doc bar:pratt from:07/01/2002 till:05/15/2003 color:intern bar:pratt from:10/14/2004 till:03/16/2006 color:doc bar:pratt from:09/22/2006 till:09/25/2008 color:erattend bar:rasgotra from:02/02/2006 till:03/30/2006 color:surgery bar:rasgotra from:03/30/2006 till:10/05/2006 color:doc bar:rasgotra from:05/19/2005 till:02/02/2006 color:doc bar:rasgotra from:09/25/2003 till:05/06/2004 color:student bar:rasgotra from:11/04/2004 till:05/19/2005 color:intern bar:rasgotra from:10/05/2006 till:09/27/2007 color:surgery bar:rasgotra from:10/18/2007 till:03/19/2009 color:surgery bar:romano from:02/05/1999 till:09/30/1999 color:erchief width:3 bar:romano from:03/13/2003 till:05/01/2003 color:erchief width:3 bar:romano from:03/13/2003 till:05/01/2003 color:schief bar:romano from:09/25/2003 till:11/20/2003 color:erchief width:3 bar:romano from:09/25/2003 till:11/20/2003 color:schief bar:romano from:09/30/1999 till:05/16/2002 color:schief width:3 bar:romano from:09/30/1999 till:05/29/2002 color:chief bar:romano from:10/10/2002 till:03/13/2003 color:chief bar:romano from:10/10/2002 till:03/13/2003 color:schief width:3 bar:romano from:10/30/1997 till:11/11/1998 color:sattend bar:romano from:11/12/1998 till:09/30/1999 color:schief bar:ross from:09/19/1994 till:09/20/1995 color:doc bar:ross from:09/21/1995 till:10/15/1998 color:erfellow bar:ross from:10/16/1998 till:02/18/1999 color:erattend bar:sam from:11/03/2005 till:05/15/2008 color:chargenurse width:3 bar:scanlon from:12/24/2004 till:05/13/2005 color:student bar:skyewexler from:11/01/2007 till:11/29/2007 color:erattend bar:skyewexler from:11/29/2007 till:04/24/2008 color:erchief bar:swift from:01/08/1998 till:01/14/1998 color:erattend bar:swift from:03/30/1995 till:09/20/1995 color:erchief bar:tracy from:09/21/1995 till:09/24/1996 color:student bar:weaver from:03/13/2003 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Departures from the main cast

's first departure from the show was in 1996, when her character,

, moved to Phoenix, Arizona, in the Season 3 episode "Union Station." In 2001, Stringfield returned to the series, reprising her role of Dr. Lewis, in the Season 8 episode "Never Say Never." She departed again after the Season 12 premiere, "Canon City." This departure was not depicted, but was mentioned by character

Kerry Weaver Kerry Weaver is a fictional character from the NBC television series '' ER''. The role was portrayed by Laura Innes who debuted as a recurring character in the second season episode "Welcome Back, Carter!", which aired on September 21, 1995. I ...

two episodes later, in "Man With No Name", as not coming in due to interviewing for a tenured position, having been denied tenure at County, and again later in "Wake Up," when Weaver explains that Susan accepted a tenure-track position at a hospital in Iowa City, Iowa. Stringfield returned once again for the series finale. After playing

Anna Del Amico Dr. Anna Del Amico is a fictional medical doctor from the television series '' ER''. She was portrayed by Maria Bello. Life and time at County Del Amico first appeared in the show in 1997, guest starring in the last 3 episodes of the third seas ...

for one season,

was not part of the ensemble cast when Season 5 began. Like Susan Lewis's second exit, her character's departure was mentioned but not depicted: in the season premiere, "Day for Knight,"

Carter Carter(s), or Carter's, Tha Carter, or The Carter(s), may refer to: Geography United States * Carter, Arkansas, an unincorporated community * Carter, Mississippi, an unincorporated community * Carter, Montana, a census-designated place * Carter, ...

explains to new medical student

that the locker she is inheriting previously belonged to Anna Del Amico, who is working in a pediatric ER in Philadelphia, where she has family and a boyfriend.

left the show in the Season 5 episode "The Storm, Part 2," when his character,

Doug Ross Douglas Ross, M.D. is a fictional character from the NBC medical drama series '' ER,'' portrayed by American actor George Clooney. He is a pediatric fellow, employed by the pediatric service, but works in the ER. He is later promoted to a ped ...

, quit before being fired for his involvement in a patient's death. Clooney made a cameo appearance in the Season 6 episode "Such Sweet Sorrow" when his character reunited with

Carol Hathaway Carol Hathaway is a fictional character from the NBC medical drama series '' ER,'' portrayed by actress Julianna Margulies. She is the nurse manager in the ER. She regularly appeared throughout the series from the pilot episode to her penultimat ...

and appeared in the Season 15 episode "Old Times" where his character was the attending physician caring for a terminal organ donor.

departed early in Season 6, in the episode "The Peace of Wild Things," when her character,

, decided to become a stay-at-home mom and care for her newly adopted HIV-positive baby. Reuben returned with her child in the Season 14 episode "Status Quo".

, who played medical student

, left the series midway through Season 6 in the episode "All In The Family," when her character was killed by a patient with undiagnosed

schizophrenia Schizophrenia is a mental disorder characterized by continuous or relapsing episodes of psychosis. Major symptoms include hallucinations (typically hearing voices), delusions, and disorganized thinking. Other symptoms include social withdra ...

; his

psychotic break Psychosis is a condition of the mind that results in difficulties determining what is real and what is not real. Symptoms may include delusions and hallucinations, among other features. Additional symptoms are incoherent speech and behavior t ...

occurred before a backed-up psychiatry department could arrive in the ER for a consult.

left the show at the end of Season 6, in the episode "Such Sweet Sorrow," when her character,

, decided on the spur of the moment to go to Seattle, Washington, and reunite with Doug Ross, her true love and the father of her twin daughters. Margulies returned in the Season 15 episode "Old Times," with her character coordinating transplant efforts from a single organ donor.

departed early in Season 8, in the episode "Never Say Never," after his character,

Dave Malucci Dr. Dave Malucci is a fictional character on the NBC prime time drama '' ER''. He was portrayed by Erik Palladino. Season 6 Dave Malucci first appears as a second-year resident. He often breaks protocol to get things done and appears to lack wa ...

, was fired for inappropriate conduct.

's character,

Peter Benton Peter Benton, M.D. is a fictional character from the NBC medical drama series '' ER,'' portrayed by actor Eriq La Salle, appearing as a primary character from the pilot episode until part way through the eighth season. La Salle made two guest a ...

, departed in the Season 8 episode "I'll Be Home For Christmas." He took a job with a set schedule at another hospital in order to spend more time with his son, Reese, and his girlfriend, former fellow ER doctor

Cleo Finch Cleo Finch is a fictional character from the NBC television series '' ER''. The role was portrayed by Michael Michele from the sixth season episode, "Leave It to Weaver", aired on September 30, 1999, until the eighth season episode, "I'll Be Home ...

. La Salle returned for two more episodes in Season 8 and then again for two episodes in Season 15, including the series finale.

's character, Cleo Finch, departed in the Season 8 episode "I'll Be Home For Christmas" with her boyfriend, and fellow doctor,

, after having previously taken a job at the same hospital (in fact it was she who arranged the interview which resulted in Benton's job offer). Michele made a cameo appearance in the Season 8 episode "On the Beach" at

Mark Greene Mark Greene, Doctor of Medicine, M.D. is a fictional character from the American medical drama series ''ER (TV series), ER,'' portrayed by actor Anthony Edwards (actor), Anthony Edwards. He first appears in the series' 24 Hours (ER), pilot epi ...

's funeral. Anthony Edwards's character,

, died of a brain tumor in Season 8's penultimate episode, "On the Beach." Unusually, Anthony Edwards was credited in the following episode "Lockdown." Edwards returned in the Season 15 episode "Heal Thyself" where he appeared in multiple flashback scenes to give insight into the past of

's character.

's character, Robert Romano, whose arm had been severed just above the elbow by a helicopter's tail rotor in the Season 9 premiere "Chaos Theory, died in the Season 10 episode "Freefall." A helicopter that was taking off from the hospital roof was buffeted by strong winds, causing it to crash on the roof and plummet over the side of the building; it fell into a crowded ambulance bay and landed squarely on Romano. McCrane returned in the Season 15 episode "Heal Thyself" in a cameo during flashbacks.

left the series in the Season 10 episode "Where There's Smoke," when his character,

, revealed that the Army was sending him to Iraq. Atkins returned for two episodes during Season 11 where he is seen serving duty in Iraq and then for four episodes during Season 12 when he marries

and then returns to Iraq where he is killed by an

improvised explosive device An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mechan ...

while serving a second tour.

's character,

Elizabeth Corday Elizabeth Corday, M.B.B.S., F.R.C.S. (married name Greene) is a fictional character in the medical drama series '' ER,'' portrayed by British actress Alex Kingston. She first appeared at the beginning of the fourth season and became a lead c ...

, departed early in Season 11 in the episode "Fear" after getting in trouble for performing an illegal organ donation procedure; rather than being summarily fired, County offered her a demotion to a non-tenured position, but she turned it down and opted to return to England instead. In an interview with Britain's ''Radio Times'' magazine, Kingston spoke of being written off the show due to her age, a statement that sparked some controversy. She later withdrew that claim. Kingston returned for two episodes in Season 15, including the series finale.TVGuide - News - Alex Kingston Books Appointment for ER Return
/ref>

departed midway through Season 11 in the episode "Twas The Night" when her character,

Jing-Mei Chen Jing-Mei Chen, M.D. is a fictional character from the medical drama series '' ER,'' portrayed by Ming-Na Wen. The character first appears in the first season as a recurring guest character, going by the name Debra "Deb" Chen. She departs the serie ...

, resigned in order to take care of her ailing father, whom she later

euthanized Animal euthanasia ( euthanasia from el, εὐθανασία; "good death") is the act of killing an animal or allowing it to die by withholding extreme medical measures. Reasons for euthanasia include incurable (and especially painful) conditi ...

. This was the second time her character left County General: in Season 1, medical student "Deb" Chen appeared in an eight episode story arc which concluded with her leaving medical school after accidentally leaving a guide wire in a patient's chest, deciding she was better suited to research than to applied medicine.

left in the Season 11 finale, "The Show Must Go On." His character, John Carter, having received tenure at County, decided to reunite with his girlfriend Kem Likasu (portrayed by

Thandie Newton Melanie Thandiwe Newton ( ; born 6 November 1972), formerly credited as Thandie Newton, is a British actress. Newton has received various awards, including a Primetime Emmy Award and a British Academy Film Award, in addition to nominations for ...

). Wyle returned for four episodes during Season 12 where he is seen practicing medicine in Darfur and then for five episodes during Season 15 when he needs a kidney transplant.

left midway through Season 13 in the episode "A House Divided," when a reluctant

Luka Kovač Luka Kovač is a fictional character from the NBC television series ER. The role was portrayed by Goran Višnjić from the sixth season episode, "Leave It to Weaver", which aired on September 30, 1999 until the thirteenth season episode, "The ...

was forced by budget cuts to fire her character,

. After bracing for a battle to keep her position, and in spite of the fact that Kovač realized he must find a way to keep her on staff, Weaver ultimately decided to resign from County and accept a job offer from a television station in Miami, Florida. Innes returned for two episodes in Season 15, including the series finale.

left in the Season 13 finale, "The Honeymoon is Over," after his character, Ray Barnett got hit by a truck, lost both his legs and returned to Baton Rouge with his mother to recuperate. West returned for three episodes during Season 15 when his character reunited with

, who played the character of

, departed in the season finale of Season 13 when he left for Croatia to care for his ailing father. He returned for seven episodes in Season 14 to wrap up his medical storyline and then made a brief appearance in Season 15's "Book of Abby" where he, Abby, and their son Joe embark on their new life together.

departed in the Season 15 premiere when his character,

Gregory Pratt Gregory Pratt, M.D. is a fictional character from the medical drama series '' ER'', portrayed by Mekhi Phifer. He first appears as a recurring character towards the end of the eight season, becoming the main character from the start of the nint ...

, died in the ER as the result of blast injuries suffered in an ambulance explosion in the Season 14 finale.

, who played the character of

Abby Lockhart Abigail Marjorie Lockhart, M.D. (née Wyczenski) is a fictional character from the NBC medical drama series '' ER,'' portrayed by Maura Tierney. Usually referred to as simply Abby, she first appears as a guest star in the first half of the six ...

, departed early in Season 15 in the episode "Book of Abby" with her TV husband Luka Kovač. Along with their son Joe, they presumably headed to Boston, where Abby had accepted a new job. She attempted to leave the ER quietly, however the rest of the staff made it known how much they would miss her. Nurse

Haleh Adams ''ER'' is an American medical drama television series created by novelist and physician Michael Crichton that aired on NBC from September 19, 1994, to April 2, 2009, with a total of 331 episodes spanning 15 seasons. It was produced by Consta ...

showed Abby a hidden wall with the locker labels of all the past staff members since season one, with the exceptions of Carter (who refused to deface government property) and Boulet (who took hers as a memento when she departed in Season 6). Other names on the wall include departed former characters as well as some prominent writers and producers. Abby then left the ER and met Luka and her son Joe outside to embark on their new life together. Tierney returned in the Season 15 episode "Shifting Equilibrium" in a cameo during a phone conversation with Neela Rasgotra.

Supporting cast

Desk clerks and other non-medical hospital staff

Family members and friends

Fire fighters, paramedics, police officers, and social workers

Notable patients

Others

Secondary doctors and medical students

Nurses and other medical staff

Guest stars

Notable guest stars

Ed Asner Eddie Asner (; November 15, 1929 – August 29, 2021) was an American actor and former president of the Screen Actors Guild. He is best remembered for portraying Lou Grant during the 1970s and early 1980s, on both ''The Mary Tyler Moore Show'' an ...

in 2003, as Dr. James McNulty, who runs a street clinic *

Kat Dennings Katherine Victoria Litwack (born June 13, 1986), known professionally as Kat Dennings, is an American actress. She is known for her starring roles as Max Black in the CBS sitcom '' 2 Broke Girls'' (2011–2017) and as Darcy Lewis in the Marvel ...

in 2006, as Zoe Butler, a victim of parental battering *

Kirsten Dunst Kirsten Caroline Dunst (; born April 30, 1982) is an American actress. She made her acting debut in the short ''Oedipus Wrecks'' directed by Woody Allen in the anthology film ''New York Stories'' (1989). She then gained recognition for her rol ...

in 1996, as Charlie Chemingo, a child prostitute *

Zac Efron Zachary David Alexander Efron (; born October 18, 1987) is an American actor. He began acting professionally in the early 2000s and rose to prominence in the late 2000s for his leading role as Troy Bolton in the ''High School Musical'' trilo ...

in 2003, as Bobby Neville, a gunshot victim *

Lucy Liu Lucy Alexis Liu is an American actress. Her accolades include winning a Critics' Choice Television Award, two Screen Actors Guild Awards and a Seoul International Drama Award, in addition to nominations for a Primetime Emmy Award. Liu has star ...

in 1995, as Mei-Sun Leow, the mother of a child dying of

AIDS Human immunodeficiency virus infection and acquired immunodeficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV), a retrovirus. Following initial infection an individual m ...

Chris Pine Chris Pine (born August 26, 1980) is an American actor. He is best known for his roles as James T. Kirk in the ''Star Trek'' reboot film series (2009–present), Steve Trevor in the DC Extended Universe films ''Wonder Woman'' (2017) and ''Won ...

in 2003, as Levine, a drunk teen patient *

Charlotte Rae Charlotte Rae Lubotsky (April 22, 1926 – August 5, 2018) was an American character actress and singer whose career spanned six decades. Rae was known for her portrayal of Edna Garrett in the sitcoms ''Diff'rent Strokes'' and its spin-off, '' ...

in 2008, as Roxanne Gaines *

Susan Sarandon Susan Abigail Sarandon (; née Tomalin; born October 4, 1946) is an American actorMcCabe, Bruce"Susan Sarandon, the 'actor'" ''Boston Globe''. April 17, 1981. Retrieved January 21, 2021. and activist. She is the recipient of various accolades, ...

in 2009, as Nora, a grandmother being asked to consent to the donation of her grandchild's organs *

Eric Stonestreet Eric Allen Stonestreet (born September 9, 1971) is an American actor and comedian. He is best known for portraying Cameron Tucker in the ABC mockumentary sitcom ''Modern Family'', for which he received two Emmy Awards for Outstanding Supporting ...

in 2000, as Willie, a man who tried to make his ears look Vulcan *

Charles Tyner Charles Tyner (June 8, 1923 – November 8, 2017) was an American film, television and stage character actor best known, principally, for his performances in the films ''Harold and Maude'' (1971), '' Emperor of the North Pole'' (1973), '' The Long ...

in 1999, as Barry Connelly, whose wife hesitates to sign a DNR *

Wallace Shawn Wallace Michael Shawn (born November 12, 1943) is an American actor, playwright, and essayist. His film roles include Wally Shawn (a fictionalized version of himself) in '' My Dinner with Andre'' (1981), Vizzini in ''The Princess Bride'' (1987), ...

in 2009, as Teddy Lempell, whose love potion may have worked with Jerry *

Judy Greer Judith Therese Evans (born July 20, 1975), known professionally as Judy Greer, is an American actress. She is primarily known as a character actress, who has appeared in a wide variety of films. She first rose to prominence in a variety of suppor ...

in 2009, as Tildie Mulligan, who drove her car into the lake because the GPS told her to go straight *

Diego Klattenhoff Diego Klattenhoff is a Canadian actor known for his portrayals of Mike Faber in the Showtime series ''Homeland'' and as FBI Special Agent Donald Ressler in ''The Blacklist''. He has also appeared as Derek in '' Whistler'', Ivan in ''Men in Tre ...

in 2009, as Jay, the best friend of patient, Mr. Walter's, late son. *

Michael Reilly Burke Michael Reilly Burke (born June 27, 1964) is an American actor. He played Rex Van De Kamp on the unaired pilot of ''Desperate Housewives''. Steven Culp replaced him before the pilot aired. He also appeared in The WB series ''Charmed'' in the epi ...

in 2009, as Dick White, the father that provided vodka at his teenage daughter's slumber party *

Brian Haley Brian Carlo Haley (born February 12, 1963) is an American actor and comedian. His stand-up act is characterized by playing his all-American looks against manic outbursts and absurd situations. As an actor, he may be best known for his roles as Vee ...

in 2009, as Chris Salamunovich, the husband of the woman having twins *

Marilu Henner Mary Lucy Denise Henner is an American actress. She began her career appearing in the original production of the musical '' Grease'' in 1971, before making her screen debut in the 1977 comedy-drama film '' Between the Lines''. In 1977, Henner wa ...

in 2009, as Linda, the obnoxious mother in law who fought with her son's bride at the wedding *

Eva Mendes Eva de la Caridad Méndez (, ; born March 5, 1974), known professionally as Eva Mendes, is an American actress, model and fashion designer. Her acting career began in the late 1990s, with a series of roles in films such as '' Children of the Cor ...

in 1998, as Donna, a babysitter concerned with the well-being of the girl she's caring for

Emmy Award recognized guest stars

Guest stars whose performances won

Emmys The Emmy Awards, or Emmys, are an extensive range of awards for artistic and technical merit for the American and international television industry. A number of annual Emmy Award ceremonies are held throughout the calendar year, each with the ...

are: *

Sally Field Sally Margaret Field (born November 6, 1946) is an American actress. She has received many awards and nominations, including two Academy Awards, three Primetime Emmy Awards, two Golden Globe Awards, a Screen Actors Guild Award, a Cannes Film F ...

in 2001, as

Maggie Wyczenski ''ER'' is an American medical drama television series created by novelist and physician Michael Crichton that aired on NBC from September 19, 1994, to April 2, 2009, with a total of 331 episodes spanning 15 seasons. It was produced by Michael C ...

's mother. *

Ray Liotta Raymond Allen Liotta (; December 18, 1954 – May 26, 2022) was an American actor. He was best known for his roles as Shoeless Joe Jackson in ''Field of Dreams'' (1989) and Henry Hill in Martin Scorsese's ''Goodfellas'' (1990). He was a Primeti ...

in 2005, as Charlie Metcalf, a regret-ridden, dying

alcoholic Alcoholism is, broadly, any drinking of alcohol that results in significant mental or physical health problems. Because there is disagreement on the definition of the word ''alcoholism'', it is not a recognized diagnostic entity. Predomin ...

. Guest stars whose performances earned

Emmy The Emmy Awards, or Emmys, are an extensive range of awards for artistic and technical merit for the American and international television industry. A number of annual Emmy Award ceremonies are held throughout the calendar year, each with the ...

nominations include: *

Rosemary Clooney Rosemary Clooney (May 23, 1928 – June 29, 2002) was an American singer and actress. She came to prominence in the early 1950s with the song "Come On-a My House", which was followed by other pop numbers such as " Botch-a-Me", " Mambo Italiano", ...

in 1995, as "Madame X", an

Alzheimer's Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens. It is the cause of 60–70% of cases of dementia. The most common early symptom is difficulty in remembering recent events. As t ...

patient. *

Penny Fuller A penny is a coin ( pennies) or a unit of currency (pl. pence) in various countries. Borrowed from the Carolingian denarius (hence its former abbreviation d.), it is usually the smallest denomination within a currency system. Presently, it is th ...

in 1996, as Mrs. Constantine. *

William H. Macy William Hall Macy Jr. (born March 13, 1950) is an American actor. His film career has been built on appearances in small, independent films, though he has also appeared in mainstream films. Some of his best known starring roles include those i ...

in 1997, as Dr. David Morgenstern. *

Ewan McGregor Ewan Gordon McGregor ( ; born 31 March 1971) is a Scottish actor. His accolades include a Golden Globe Award, a Primetime Emmy Award, and the BAFTA Britannia Humanitarian Award. In 2013, he was appointed Officer of the Order of the British ...

in 1997, as Duncan Stewart, a convenience store gunman. *

Veronica Cartwright Veronica Cartwright (born April 20, 1949) is a British-American actress. She is known for appearing in science fiction and horror films, and has earned numerous accolades, including three Primetime Emmy Award nominations. As a child actress, sh ...

in 1997, as Norma. *

Swoosie Kurtz Swoosie Kurtz ( ; born September 6, 1944) is an American actress. She is the recipient of an Emmy Award and two Tony Awards. Kurtz made her Broadway theatre, Broadway debut in the 1975 revival of ''Ah, Wilderness''. She has received five Tony ...

in 1998, as Tina-Marie Chambliss. *

Alan Alda Alan Alda (; born Alphonso Joseph D'Abruzzo; January 28, 1936) is an American actor, screenwriter, and director. A six-time Emmy Award and Golden Globe Award winner, he is best known for playing Captain Benjamin "Hawkeye" Pierce in the war co ...

in 2000, as Dr. Gabriel Lawrence, an Alzheimer's-stricken doctor and one-time teacher of

. *

James Cromwell James Oliver Cromwell (born January 27, 1940) is an American actor and activist. Some of his best-known films include ''Babe'' (1995), '' Star Trek: First Contact'' (1996), ''L.A. Confidential'' (1997), '' The Green Mile'' (1999), ''The Queen'' ...

in 2001, as Bishop Stewart, an ailing

Roman Catholic Roman or Romans most often refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century BC to 5th century AD *Roman people, the people of ancient Rome *'' Epistle to the Romans'', shortened to ''Romans'', a lette ...

bishop A bishop is an ordained clergy member who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance of dioceses. The role or office of bishop is ca ...

who coaxes a

confession A confession is a statement – made by a person or by a group of persons – acknowledging some personal fact that the person (or the group) would ostensibly prefer to keep hidden. The term presumes that the speaker is providing information th ...

from Dr. Luka Kovač, before dying from lupus. *

Mary McDonnell Mary Eileen McDonnell (born April 28, 1952) is an American film, stage, and television actress. She received Academy Award nominations for her roles as Stands With A Fist in ''Dances with Wolves'' and May-Alice Culhane in ''Passion Fish''. McD ...

in 2002, as Eleanor Carter, the mother of

Dr. John Carter John Truman Carter III, Doctor of Medicine, M.D. is a fictional character from the NBC television series ''ER (TV Series), ER.'' He was portrayed by Noah Wyle and appeared as one of the series' principal characters from the 24 Hours (ER), pilot ...

. *

Don Cheadle Donald Frank Cheadle Jr. (; born November 29, 1964) is an American actor. He is the recipient of multiple accolades, including two Grammy Awards, a Tony Award, two Golden Globe Awards and two Screen Actors Guild Awards. He has also earned ...

in 2003, as Paul Nathan, a medical student with

Parkinson's disease Parkinson's disease (PD), or simply Parkinson's, is a long-term degenerative disorder of the central nervous system that mainly affects the motor system. The symptoms usually emerge slowly, and as the disease worsens, non-motor symptoms becom ...

. *

Bob Newhart George Robert Newhart (born September 5, 1929) is an American actor and comedian. He is known for his deadpan and slightly stammering delivery style. Newhart came to prominence in 1960 when his album of comedic monologues, ''The Button-Down Mi ...

in 2004, as Ben Hollander, an

architecture Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing building ...

model maker losing his sight. *

Red Buttons Red Buttons (born Aaron Chwatt; February 5, 1919 – July 13, 2006) was an American actor and comedian. He won an Oscar and a Golden Globe for his supporting role in the 1957 film ''Sayonara''. He was nominated for awards for his acting work i ...

in 1995, 1996, and 2005, as Mr. Jules "Ruby" Rubadoux. *

James Woods James Howard Woods (born April 18, 1947) is an American actor. He is known for his work in various film, stage, and television productions. He started his career in minor roles on and off-Broadway. In 1972, he appeared in '' The Trial of the ...

in 2006, as Dr. Nate Lennox a patient with

ALS Amyotrophic lateral sclerosis (ALS), also known as motor neuron disease (MND) or Lou Gehrig's disease, is a neurodegenerative disease that results in the progressive loss of motor neurons that control voluntary muscles. ALS is the most com ...

and former teacher of many of the ER doctors. *

Forest Whitaker Forest Steven Whitaker (born July 15, 1961) is an American actor. He is the recipient of List of awards and nominations received by Forest Whitaker, various accolades, including an Academy Award, a Golden Globe Award, a British Academy Film Award ...

in 2007, as Curtis Ames, a patient filing a lawsuit against Dr. Luka Kovač. *

Stanley Tucci Stanley Tucci Jr. ( ; born November 11, 1960) is an American actor and filmmaker. Involved in acting from a young age, he made his film debut in John Huston's ''Prizzi's Honor'' (1985), and continued to play a variety of supporting roles in film ...

in 2008, as Dr. Kevin Moretti. *

Ernest Borgnine Ernest Borgnine (; born Ermes Effron Borgnino; January 24, 1917 – July 8, 2012) was an American actor whose career spanned over six decades. He was noted for his gruff but relaxed voice and gap-toothed Cheshire Cat grin. A popular perfor ...

in 2009, as Paul Manning

References

{{DEFAULTSORT:ER, Cast Of ER (TV series) Lists of actors by American television series Lists of actors by drama television series