The twelfth and final season of the American television

sitcom A sitcom, a portmanteau of situation comedy, or situational comedy, is a genre of comedy centered on a fixed set of characters who mostly carry over from episode to episode. Sitcoms can be contrasted with sketch comedy, where a troupe may use ne ...

The Big Bang Theory ''The Big Bang Theory'' is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom served as executive producers on the series, along with Steven Molaro, all of whom also served as head writers. It premiered on CBS ...

'' premiered on

CBS CBS Broadcasting Inc., commonly shortened to CBS, the abbreviation of its former legal name Columbia Broadcasting System, is an American commercial broadcast television and radio network serving as the flagship property of the CBS Entertainmen ...

on September 24, 2018. The season returned to its regular Thursday timeslot on September 27, 2018, and concluded on May 16, 2019.

Production

In March 2017, CBS renewed the series for two more seasons, bringing its total to twelve, and running through the 2018–19 television season. On August 22, 2018, CBS and Warner Bros. Television officially announced that the twelfth season would be the series' last. This stemmed from

Jim Parsons James Joseph Parsons (born March 24, 1973) is an American actor. From 2007 to 2019, he played Sheldon Cooper in the CBS sitcom ''The Big Bang Theory''. He has received various awards, including four Primetime Emmy Awards for Outstanding Lead A ...

' decision to leave the series at the end of season twelve if the show were to have been renewed for a thirteenth season. The series concluded with an hour-long finale consisting of two back-to-back episodes on May 16, 2019.

Cast

Main cast

Johnny Galecki John Mark Galecki (born April 30, 1975) is an American actor. He played Leonard Hofstadter in the CBS sitcom ''The Big Bang Theory'' (2007–2019) for which he received a Primetime Emmy Award nomination, and David Healy in the ABC sitcoms '' Ro ...

as Dr. Leonard Hofstadter *

as Dr. Sheldon Cooper *

Kaley Cuoco Kaley Christine Cuoco ( ; born November 30, 1985) is an American actress. After a series of supporting film and television roles in the late 1990s, she landed her breakthrough role as Bridget Hennessy on the ABC sitcom ''8 Simple Rules'' (2002 ...

as Penny Hofstadter *

Simon Helberg Simon Maxwell Helberg (born December 9, 1980) is an American actor and comedian. He is known for playing Howard Wolowitz in the CBS sitcom ''The Big Bang Theory'' (2007–2019), for which he won the Critics' Choice Television Award for Best Supp ...

Howard Wolowitz Howard Joel Wolowitz, M.Eng. is a fictional character on the CBS television series ''The Big Bang Theory'', portrayed by actor Simon Helberg. Among the four main male characters in the show, Howard is distinctive for being an engineer—rather t ...

Kunal Nayyar Kunal Nayyar (, ; born 30 April 1981) is a British actor. He portrayed Raj Koothrappali on the CBS sitcom ''The Big Bang Theory'' (2007–2019) and voiced Vijay on the Nickelodeon animated sitcom ''Sanjay and Craig'' (2013–2016). Nayyar als ...

as Dr. Rajesh "Raj" Koothrappali *

Mayim Bialik Mayim Chaya Bialik ( ; born December 12, 1975) is an American actress, game show host, and author. From 1991 to 1995, she played the title character of the NBC sitcom ''Blossom (TV series), Blossom''. From 2010 to 2019, she played neuroscientist ...

as Dr. Amy Farrah Fowler *

Melissa Rauch Melissa Ivy Rauch (born June 23, 1980) is an American actress, model and comedian. She is known for playing Bernadette Rostenkowski-Wolowitz on the CBS sitcom ''The Big Bang Theory'', for which she was nominated for the Critics' Choice Televi ...

as Dr. Bernadette Rostenkowski-Wolowitz *

Kevin Sussman Kevin Sussman (born December 4, 1970) is an American actor and comedian. He played Walter on the ABC comedy-drama ''Ugly Betty'' and Stuart Bloom on the CBS sitcom ''The Big Bang Theory''. Starting with the sixth season of ''The Big Bang Theory ...

Stuart Bloom The American television sitcom ''The Big Bang Theory'', created and executive produced by Chuck Lorre and Bill Prady, premiered on CBS on September 24, 2007, while the American comedy spin-off prequel television series ''Young Sheldon'', creat ...

Recurring cast

Christine Baranski Christine Jane Baranski (born May 2, 1952) is an American actress. She is a 15-time Primetime Emmy Award nominee, winning once in 1995 for Outstanding Supporting Actress in a Comedy Series for her role as Maryann Thorpe in the sitcom ''Cybill'' ...

Dr. Beverly Hofstadter The American television sitcom ''The Big Bang Theory'', created and executive produced by Chuck Lorre and Bill Prady, premiered on CBS on September 24, 2007, while the American comedy spin-off prequel television series ''Young Sheldon'', cre ...

Brian Posehn Brian Edmund Posehn (; born July 6, 1966) is an American stand-up comedian, actor, voice actor, musician, and writer. After numerous appearances as a television guest star, Posehn acquired his first major recurring role in HBO's ''Mr. Show with ...

as Dr. Bertram "Bert" Kibbler *

Brian George Brian George (born 1 July 1952) is a British actor. He is best known for his roles as Pakistani restaurateur Babu Bhatt in ''Seinfeld'' (1989–1998), the Indian gynecologist father of Raj Koothrappali in ''The Big Bang Theory'' (2007–2019 ...

as Dr. V.M. Koothrappali *

Lauren Lapkus Dorthea Lauren Allegra Lapkus (born September 6, 1985) is an American actress and comedian. Lapkus is known for portraying Susan Fischer in the Netflix comedy-drama series ''Orange Is the New Black'' (2013–2014, 2019) and Jess in the HBO comed ...

as Denise *

Keith Carradine Keith Ian Carradine ( ; born August 8, 1949) is an American actor who has had success on stage, film, and television. He is known for his roles as Tom Frank in Robert Altman's film ''Nashville'', Wild Bill Hickok in the HBO series '' Deadwood ...

as Wyatt *

Rati Gupta Rati Gupta (born February 9, 1984) is an American dancer and actress known for her recurring role as Anu, the fiancée of Rajesh Ramayan Koothrappali in the CBS sitcom ''The Big Bang Theory''. Early life Gupta was born in Michigan City, Ind ...

as Anu *

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 ...

as Dr.

Arthur Jeffries The American television sitcom ''The Big Bang Theory'', created and executive produced by Chuck Lorre and Bill Prady, premiered on CBS on September 24, 2007, while the American comedy spin-off prequel television series ''Young Sheldon'', creat ...

Professor Proton The American television sitcom ''The Big Bang Theory'', created and executive produced by Chuck Lorre and Bill Prady, premiered on CBS on September 24, 2007, while the American comedy spin-off prequel television series ''Young Sheldon'', cre ...

Joshua Malina Joshua Charles Malina (born January 17, 1966) is an American film and stage actor known for playing Will Bailey on the NBC drama ''The West Wing'', Jeremy Goodwin on '' Sports Night'', US Attorney General David Rosen on ''Scandal'', and Caltech ...

as President Siebert *

John Ross Bowie John Ross Bowie (born May 30, 1971) is an American actor and comedian best known for playing Barry Kripke on ''The Big Bang Theory'' and Jimmy DiMeo on '' Speechless,'' in addition to over 100 film and TV credits. He is of no known relation to s ...

as Dr. Barry Kripke *

Brian Thomas Smith Brian Thomas Smith (born May 13, 1977) is an American actor and comedian known for playing the dim-witted but kind-hearted Zack Johnson in ''The Big Bang Theory'' for nine seasons. He has also made other TV appearances on '' Fear Factor'', ''Tw ...

as Zack Johnson *

Lindsey Kraft Lindsey Brooke Kraft (born January 23, 1983) is an American actress, model and writer. She is best known for playing Marguerite Macaw on '' Getting On'', Leslie Curry on ''Living Biblically'', and Allison on ''Grace and Frankie''. Kraft has als ...

as Marissa Johnson *

Kal Penn Kalpen Suresh Modi (born April 23, 1977), known professionally as Kal Penn, is an American actor, author, academic lecturer, and former White House staff member in the Barack Obama administration. As an actor, he is known for his role portrayin ...

as Dr. Kevin Campbell *

Sean Astin Sean Patrick Astin (né Duke; February 25, 1971) is an American actor. His acting roles include Samwise Gamgee in ''The Lord of the Rings'' trilogy (2001–2003), Mikey Walsh in ''The Goonies'' (1985), Daniel Ruettiger in ''Rudy'' (1993), Doug ...

as Dr. Greg Pemberton

Guest cast

* Teller as Larry Fowler *

Kathy Bates Kathleen Doyle Bates (born June 28, 1948) is an American actor and director. Known for her roles in comedic and dramatic films and television programs, she has received various accolades throughout her career spanning over five decades, includ ...

as Mrs. Fowler *

Neil deGrasse Tyson Neil deGrasse Tyson ( or ; born October 5, 1958) is an American astrophysicist, author, and science communicator. Tyson studied at Harvard University, the University of Texas at Austin, and Columbia University. From 1991 to 1994, he was a po ...

as himself *

Bill Nye William Sanford Nye (born November 27, 1955), popularly known as Bill Nye the Science Guy, is an American mechanical engineer, science communicator, and television presenter. He is best known as the host of the science television show ''Bill ...

as himself *

Jerry O'Connell Jerry O'Connell (born February 17, 1974) is an American actor and television host. He is known for his roles as Quinn Mallory in the television series ''Sliders'', Andrew Clements in ''My Secret Identity'', Vern Tessio in the film '' Stand by M ...

as George Cooper Jr. *

Robert Wu Robert Wu is an American actor, producer and writer. He played Ming, who transforms into a version of "Ming the Merciless", the arch-enemy of Flash Gordon, (during an hallucination that Sam J. Jones, the actor who plays Flash Gordon has) in ...

Tam Nguyen The American television sitcom ''The Big Bang Theory'', created and executive produced by Chuck Lorre and Bill Prady, premiered on CBS on September 24, 2007, while the American comedy spin-off prequel television series ''Young Sheldon'', crea ...

Maribeth Monroe Maribeth Monroe (born March 25, 1978) is an American actress, writer and comedian. She is known for portraying Alice Murphy on Comedy Central's sitcom ''Workaholics'', Mindy St. Claire on NBC's sitcom,''The Good Place'', and Christina Wheeler on ...

as Dr. Lee *

Iain Armitage Iain Armitage (; born July 15, 2008) is an American child actor. He is known for starring as Sheldon Cooper in ''Young Sheldon'', a prequel to ''The Big Bang Theory'', and Ziggy Chapman in '' Big Little Lies''. In 2018, Armitage received the You ...

Young Sheldon ''Young Sheldon'' is an American List of coming-of-age stories, coming-of-age sitcom television series created by Chuck Lorre and Steven Molaro for CBS. The series, set in the late 1980s and early 1990s, is a Spin-off (media), spin-off prequel ...

Lance Barber Lance Barber (born June 29, 1973) is an American actor. He is best known for playing George Cooper, Sr. on the CBS sitcom ''Young Sheldon'' (2017–present), as well as Bill Ponderosa on the FX show ''It's Always Sunny in Philadelphia''. Early ...

as George Cooper Sr. *

Montana Jordan Montana Jordan (born March 8, 2003) is an American actor. He is best known for his role as George Cooper, Jr., Georgie Cooper in ''Young Sheldon''. Life and career Born in Longview, Texas, he was raised in Ore City, Texas. In October 2015, he ...

as Young George Cooper Jr. *

Andy Daly Andrew J. Daly (born April 15, 1971) is an American actor, comedian and writer. He starred as Forrest MacNeil on the Comedy Central series ''Review'', and had a supporting role in the HBO comedy series '' Eastbound & Down'' as Terrence Cutler. H ...

as Nathan *

William Shatner William Shatner (born March 22, 1931) is a Canadian actor. In a career spanning seven decades, he is best known for his portrayal of James T. Kirk in the ''Star Trek'' franchise, from his 1965 debut as the captain of the starship USS Enterpri ...

as himself *

Wil Wheaton Richard William Wheaton III (born July 29, 1972) is an American actor. He portrayed Wesley Crusher on the television series ''Star Trek: The Next Generation'', Gordie Lachance in the film ''Stand by Me (film), Stand by Me'', Joey Trotta in '' ...

as himself *

Kevin Smith Kevin Patrick Smith (born August 2, 1970) is an American filmmaker, actor, comedian, comic book writer, author, YouTuber, and podcaster. He came to prominence with the low-budget comedy buddy film ''Clerks'' (1994), which he wrote, directed, co ...

as himself *

Kareem Abdul-Jabbar Kareem (alternatively spelled Karim or Kerim) ( ar, کریم) is a common given name and surname of Arabic origin that means "generous", "noble", "honorable". It is also one of the Names of God in Islam in the Quran. Given name Karim * Karim A ...

as himself *

Joe Manganiello Joseph Michael Manganiello ( ; , ; born December 28, 1976) is an American actor. His professional film career began when he played Flash Thompson in Sam Raimi's ''Spider-Man''. His breakout role was as werewolf Alcide Herveaux in five seasons of ...

as himself *

Ellen DeGeneres Ellen Lee DeGeneres ( ; born January 26, 1958) is an American comedian, television host, actress, writer, and producer. She starred in the sitcom ''Ellen'' from 1994 to 1998, which earned her a Primetime Emmy Award for " The Puppy Episode". Sh ...

as herself *

George Smoot George Fitzgerald Smoot III (born February 20, 1945) is an American astrophysicist, cosmologist, Nobel laureate, and the 2nd contestant to win the $1 million prize on '' Are You Smarter than a 5th Grader?''. He won the Nobel Prize in Physics i ...

as himself *

Kip Thorne Kip Stephen Thorne (born June 1, 1940) is an American theoretical physicist known for his contributions in gravitational physics and astrophysics. A longtime friend and colleague of Stephen Hawking and Carl Sagan, he was the Richard P. Fey ...

as himself * Frances H. Arnold as herself *

Regina King Regina Rene King (born January 15, 1971) is an American actress and director. She is the recipient of various accolades, including an Academy Award, a Golden Globe Award, and four Primetime Emmy Awards. In 2019, ''Time'' magazine named her one ...

as Janine Davis * Todd Giebenhain as Mitch *

Sarah Michelle Gellar Sarah Michelle Prinze ( ; born April 14, 1977) is an American actress. After being spotted at the age of four in New York City, she made her screen acting debut in the television film ''An Invasion of Privacy'' (1983). A leading role on the te ...

as herself *

Mark Hamill Mark Richard Hamill (; born September 25, 1951) is an American actor and writer. He is known for his role as Luke Skywalker in the ''Star Wars'' film series, beginning with the original 1977 film and subsequently winning three Saturn Awards f ...

as himself

Episodes

Ratings

Special

A retrospective, ''Unraveling the Mystery: A Big Bang Farewell'', hosted by Johnny Galecki and Kaley Cuoco, aired at 9:30 P.M. ET/PT, the night of the finale, following the season two finale of ''

'', and the series finale of ''The Big Bang Theory''. The special was also included on the DVD and Blu-Ray releases of the season.

References

External links

* {{DEFAULTSORT:Big Bang Theory, The 2018 American television seasons 2019 American television seasons The Big Bang Theory seasons