'' ER'' is an American drama series that aired on NBC 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 as Dr. Susan Lewis, Noah Wyle as medical student (later Dr.) John Carter, and Eriq La Salle as Dr. Peter Benton. Julianna Margulies 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 as

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 joined the cast as Dr. Elizabeth Corday. Season 5 saw the addition of Kellie Martin as medical student Lucy Knight. 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 as Dr. Robert "Rocket" Romano (recurring character in both Seasons 4 and 5), Croatian actor Goran Visnjic 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 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, 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 Sherry Stringfield 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

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Departures from the main cast

Sherry Stringfield'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 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 Lucy Knight 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". Kellie Martin, who played medical student Lucy Knight, 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 occurred before a backed-up psychiatry department could arrive in the ER for a consult. Julianna Margulies 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. Erik Palladino 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. Eriq La Salle's character, Peter Benton, 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. 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, Peter Benton, 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. Paul McCrane'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, Michael Gallant, 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. Alex Kingston's character, Elizabeth Corday, 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. Noah Wyle 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). 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. Laura Innes left midway through Season 13 in the episode "A House Divided," when a reluctant Luka Kovač was forced by budget cuts to fire her character, Kerry Weaver. 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

. Goran Visnjic, who played the character of Luka Kovač, 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 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 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 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 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 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 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 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 in 2005, as Charlie Metcalf, a regret-ridden, dying alcoholic. 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 in 1997, as Duncan Stewart, a convenience store gunman. * Veronica Cartwright in 1997, as Norma. * Swoosie Kurtz in 1998, as Tina-Marie Chambliss. * Alan Alda in 2000, as Dr. Gabriel Lawrence, an Alzheimer's-stricken doctor and one-time teacher of

. * James Cromwell in 2001, as Bishop Stewart, an ailing Roman Catholic bishop who coaxes a Confession (religion), confession from Dr. Luka Kovač, before dying from lupus. * Mary McDonnell in 2002, as Eleanor Carter, the mother of John Carter (ER), Dr. John Carter. * Don Cheadle in 2003, as Paul Nathan, a medical student with Parkinson's disease. * Bob Newhart in 2004, as Ben Hollander, an architectural, architecture model maker losing his sight. * Red Buttons in 1995, 1996, and 2005, as Mr. Jules "Ruby" Rubadoux. * James Woods in 2006, as Dr. Nate Lennox a patient with amyotrophic lateral sclerosis, ALS and former teacher of many of the ER doctors. * Forest Whitaker in 2007, as Curtis Ames, a patient filing a lawsuit against Dr. Luka Kovač. * Stanley Tucci in 2008, as Dr. Kevin Moretti. * Ernest Borgnine 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