About Robert Knepper
Born 1959. Robert Knepper is an American television actor, film actor, stage actor and actor.
Robert Lyle Knepper (born July 8, 1959) is an American actor best known for his role as Theodore "T-Bag" Bagwell in the Fox drama series Prison Break (2005β2009, 2017), Samuel Sullivan in the final season of the NBC series Heroes (2009β2010), Angus McDonough in The CW series iZombie (2015β2018) and Rodney Mitchum in Showtime's revival of Twin Peaks. He has appeared in films such as Hitman (2007), Transporter 3 (2008) and Jack Reacher: Never Go Back (2016).
Early life Knepper was born in Fremont, Ohio, a veterinarian. He was interested in acting from an early age, due to his mother's involvement as a props-handler at a community theater. After graduating from Maumee High School in 1977, he attended Northwestern University; during this time, Knepper obtained professional roles in plays in Chicago. Nearing the completion of his degree, Knepper quit Northwestern and went to New York City, where he continued to work in theater.
Career Although Knepper did not intend to work in film and television projects, he began his television and film career in 1986 with The Paper Chase and That's Life!. Knepper went on to have larger roles in such films as Wild Thing, Young Guns II, When the Bough Breaks and Everyone Says I Love You. He made appearances on such television series as The Twilight Zone, Star Trek: The Next Generation, ER and Law & Order. In 2005, after a recurring role on the HBO series CarnivΓ le, Knepper was cast in his best-known role, as Theodore "T-Bag" Bagwell in Prison Break. The series received positive reviews upon release, and "T-Bag" is often considered to be one of the greatest television villains of all time. During his time on Prison Break, Knepper starred in a number of films; Good Night, and Good Luck, Hitman, Transporter 3 and The Day the Earth Stood Still.
After Prison Break ended in 2009, Knepper was cast as villain Samuel Sullivan in the fourth and final season of Heroes. After this, he went on to have a recurring role in Stargate Universe in 2010. He guest-starred on season six of Criminal Minds as Rhett Walden, a serial killer. The same year he played the titular character in the film adaptation of Burning Daylight.
In addition, Knepper appeared as Honolulu Police Internal Affairs detective Rex Coughlin in two episodes of Hawaii Five-0.
In 2011, he reprised his role of T-Bag in one episode of the A&E series Breakout Kings. The next year, he played Frank Sinatra in My Way, a biopic of Claude FranΓ§ois, a French pop singer who wrote the song "Comme d'habitude", the original version of Sinatra's song "My Way".
Knepper was cast in the 2013 television series Cult as Roger Reeves, an actor playing Billy Grimm on a show called Cult. The show was canceled after only one season. The same year, he appeared in R.I.P.D., Percy Jackson: Sea of Monsters and guest starred on the television series The Blacklist (episode: "The Courier"). At the end of 2013, the TNT series Mob City premiered, in which Knepper played gangster Sid Rothman. In 2014, Knepper guest starred in episodes of Arrow and The Flash as master hacker and time-and-motion study expert William Tockman / Clock King.
Beginning in 2015, Knepper had a recurring role on iZombie as Angus McDonough, the estranged and abusive father of Blaine DeBeers (David Anders). It was announced in July 2017 that Knepper would be promoted to the show's main cast for season 4.
Knepper was cast in the reboot of David Lynch's Twin Peaks as gangster Rodney Mitchum. He later voiced the audiobook adaptation for the tie-in epistolary novel of the show called The Secret History of Twin Peaks.
Personal life Knepper has a son, Benjamin Peter (born 2002), with his first wife, Tory Herald. He married his second wife, Nadine Kary, in 2013.
Sexual assault allegations
On November 8, 2017, costume designer Susan Bertram accused Knepper of sexual assault on the set of the film Gas Food Lodging in 1991. Knepper denied the allegations in a since-deleted Instagram post. Knepper's lawyers denied that he defamed Bertram. On June 1, 2021, Bertram's attorney announced that the lawsuit had been settled; the terms have not been publicized.
Four additional allegations taking place between 1983 and 2014 were made by women against Knepper on December 5, 2017, including an accusation of rape in Vancouver in 2010. All of the allegations were denied by Knepper.
Late in 2017, in the wake of these accusations, The CW Network conducted an internal inquiry. Finding no evidence of misconduct transpiring on the set, it was announced he would be remaining on iZombie. On January 12, 2018, it was announced that the studio had conducted a second investigation. The CW Network president Mark Pedowitz stated, "Again, the investigation related to the set and his behavior on the set. They found no wrongdoing on the set." Pedowitz elaborated that Knepper had signed on for a single season and that his exit from the series had already been planned.
Filmography
Film Year Title Role Notes 1986 That's Life! Steve Larwin 1987 Wild Thing Wild Thing Made in Heaven Orrin 1988 D.O.A. Nicholas Lang 1989 Renegades Marino 1990 Arduous Moon Andrew Short film Young Guns II Deputy Carlyle 1991 Session Man Torrey Cole Short film Where the Day Takes You Rock Singer 1992 Gas Food Lodging Dank 1994 When the Bough Breaks Lt. Jimmy Creedmore 1994 Under the Heat Milo 1995 Search and Destroy Daniel Strong 1996 Dead of Night Christian MugShot Joe Everyone Says I Love You Greg The Undercover Kid Bo the Dog (voice) The Hunchback of Notre Dame Frollo's Soldiers (voice) 1997 You Are Here Jack 1998 Phantoms Agent Wilson The Stringer John Jaded Freddy 2000 Love & Sex Gerard Boussard 2001 Lady in the Box Chris Stark 2002 Topa Topa Bluffs Frank Swatters Daniel Steinberg 2004 Species III Dr. Bruce Abbot 2005 Good Night, and Good Luck Don Surine Hostage Will Bechler 2007 Hitman Yuri Marklov 2008 Turok: Son of Stone Chickak (voice) Direct-to-DVD Transporter 3 Johnson The Day the Earth Stood Still Colonel 2010 Burning Daylight Elam "Burning Daylight" Harnish 2011 Earth's Final Hours John Streich 2012 My Way Frank Sinatra 2012 Seal Team Six: The Raid on Osama Bin Laden Lieutenant commander 2013 R.I.P.D. Stanley Nawlicki Percy Jackson: Sea of Monsters Kronos (voice) 2014 Ride Peter The Hunger Games: Mockingjay β Part 1 Antonius 2015 The Hoarder Vince The Hunger Games: Mockingjay β Part 2 Antonius Cold Deck Turk 2016 Hard Target 2 Aldrich Direct-to-DVD Jack Reacher: Never Go Back General Harkness 2017 Badsville Mr. Gavin2018 Frat Pack Kush Edge of Fear Victor Novak2019 1st Born Joe Defended War Voice of the Nation S.W.A.T. Sam The Trapped Victor 2020 Battle of Defense2021 Lena and Snowball Percy Redemption Day Mr. K The Retaliators Otto2022 Warhunt Sgt. Brewer The Moderator Agent John Ross Mindcage Lt. Owings 2025The Last SupperJudas Iscariot The Lost Princess Robert Goodman Al Zarfa (Arabic Film) Himself Filming
Television
Video games Year Title Role Notes 2010 Prison Break: The Conspiracy Theodore "T-Bag" Bagwell
Music videos Year Title Artist 2023 "Honky Tonkin' About" The Reklaws
Theatre
A Little Night Music β Northwestern University (1977) The Ruling Class β Northwestern University (1979) The Merchant of Venice β Northwestern University (1979β1980) Ties β Chicago (1981) Class Enemy β Evanston, Illinois (1981) Lakeboat β Chicago (1982) The Life and Adventures of Nicholas Nickleby β Chicago (1982) Dark of the Moon β Sarasota (1983) Life Signals β Sarasota (1983) Sherlock Holmes β Sarasota (1983) The Philanthropist β New York (1983) Savage Amusement β New York (1984) Romance β New York (1984) The Person I Once Was β Louisville, Kentucky (1984) The Very Last Lover of the River Cane β Louisville, Kentucky (1985) Available Light β Louisville, Kentucky (1985) Groves of Academe β Cluj, Romania (1985) A Midsummer Night's Dream β New York (1987) Romeo and Juliet β New York (1988) The Legend of Oedipus β Williamstown, Massachusetts (1988) Les Liaisons Dangereuses β Williamstown, Massachusetts (1988) Nebraska β La Jolla (1989) Ice Cream With Hot Fudge β New York (1990) Bobby, Can You Hear Me? β Waterford, Connecticut (1990) Buster Comes Through β Waterford, Connecticut (1990) Lake No Bottom β New York (1990) Dinosaur Dreams β Waterford, Connecticut (1991) Home Grown β Waterford, Connecticut (1991) Orestes β Los Angeles (1992) SalomΓ© β New York (1992) Pal Joey β Boston (1992) Sweet Bird of Youth β London (1994) Pride's Crossing β San Diego (1997) The Summer Moon β Seattle (1998)
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Important facts
People in Robert Knepper's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Robert Knepper's
Frequently asked questions
Who is Robert Knepper?
American actor
When was Robert Knepper born?
Robert Knepper was born on 8 July 1959 in Fremont.
What is Robert Knepper's occupation?
Robert Knepper is a television actor, film actor, stage actor and actor.
What nationality is Robert Knepper?
Robert Knepper is American.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Robert Knepper. https://biography.guide/robert-knepper/
MLA: "Robert Knepper." Biography.guide, https://biography.guide/robert-knepper/.
Chicago: "Robert Knepper." Biography.guide. https://biography.guide/robert-knepper/.
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