Early life

Knepper was born in Fremont, Ohio, to Pat Deck and Donald Knepper. He is of German descent. He was interested in acting from an early age, due to his mother's involvement at a community theater. He was raised in Maumee, Ohio, near Toledo, by his mother and father, who were veterinarians. Knepper spent many years of his youth working in community theater and high school productions. After graduating from Maumee High School in 1977, he attended Northwestern University to study drama. During this time, Knepper also 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 never intended 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 well known television series such as The Twilight Zone, Star Trek: The Next Generation, ER and Law & Order. In 2005, after a recurring role on the HBO series Carnivàle, Knepper was cast in his most well 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 also 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 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, biopic of Claude François, 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 cancelled 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 a.k.a. Clock King

Filmography

Film

Year	Title	Role	Notes
1986	That's Life!	Steve Larwin
1987	Wild Thing	Wild Thing
1987	Police Story: The Freeway Killings	Karl James	Television film
1987	Made in Heaven	Orrin
1988	D.O.A.	Nicholas Lang
1989	Renegades	Marino
1990	Arduous Moon	Andrew	Short film
1990	Young Guns II	Deputy Carlyle
1991	Session Man	Torrey Cole	Short film
1991	Perry Mason: The Case of the Fatal Fashion	Kim Weatherly	Television film
1991	Where the Day Takes You	Rock Singer
1992	Gas Food Lodging	Dank
1993	Zelda	Wilson	Television film
1993	When the Bough Breaks	Lt. Jimmy Creedmore
1994	Pointman	Johnny	Television film
1994	Getting Out	Carl	Television film
1994	Under the Heat	Milo
1995	Search and Destroy	Daniel Strong
1996	Dead of Night	Christian
1996	Voice from the Grave	Milosh	Television film
1996	MugShot	Joe
1996	Everyone Says I Love You	Greg
1996	The Undercover Kid	Bo the Dog (voice)
1997	You Are Here	Jack
1998	Phantoms	Agent Wilson
1998	The Stringer	John
1998	Jaded	Freddy
1999	Absence of the Good	Glenn Dwyer	Television film
1999	Kidnapped in Paradise	Renard	Television film
2000	Love & Sex	Gerard Boussard
2001	Lady in the Box	Chris Stark
2001	Jackie, Ethel, Joan: The Women of Camelot	Robert F. Kennedy	Television film
2002	Topa Topa Bluffs	Frank
2002	The Pennsylvania Miners' Story	Mark Popernack	Television film
2002	Swatters	Daniel Steinberg
2004	Species III	Dr. Abbot	Direct-to-video
2005	Good Night, and Good Luck	Don Surine
2005	Hostage	Will Bechler
2007	Hitman	Yuri Marklov
2008	Turok: Son of Stone	Chickak (voice)	Direct-to-video
2008	Transporter 3	Johnson
2008	The Day the Earth Stood Still	Colonel
2010	Burning Daylight	Elam 'Burning Daylight' Harnish
2011	Earth's Final Hours	John Streich	Television film
2012	My Way	Frank Sinatra
2012	Seal Team Six: The Raid on Osama Bin Laden	Lieutenant Commander	Television film
2013	R.I.P.D.	Stanley Nawlicki
2013	Percy Jackson: Sea of Monsters	Kronos (voice)
2014	The Hunger Games: Mockingjay - Part 1	Antonius
2014	Ride	Peter
2015	The Hoarder	Vince
2015	The Hunger Games: Mockingjay - Part 2	Antonius
2015	Cold Deck	Turk
2016	Hard Target 2	TBA	Post-Production
2016	Jack Reacher: Never Go Back	General Harkness	Filming

Television

Year	Title	Role	Notes
1986	The Paper Chase	Howard	Episode: "Graduation"
1986-1993	L.A. Law	George 'Georgia' Buckner / David Orcott	3 episodes
1987	Tour of Duty	Racist Soldier	Episode: "Burn, Baby, Burn"
1987	The Twilight Zone	Alonzo	Episode: "Joy Ride"
1987	Tour of Duty	PV2 Allen	Episode: "Burn Baby, Burn"
1987	Star Trek: The Next Generation	Wyatt Miller	Episode: "Haven"
1989	Gideon Oliver	Paul Hecht	Episode: "Kennonite"
1990	E.A.R.T.H. Force	Dr. Peter Roland	3 episodes
1990-1991	China Beach	Long / Vietnam Vet	2 episodes
1991	Civil Wars	Joey D'Amato	Episode: "Have Gun, Will Unravel"
1992	Tequila and Bonetti	Ren Philips	Episode: "Runt of the Litter"
1992	Red Shoe Diaries	Nick Willard	Episode: "You Have the Right to Remain Silent"
1993	Doorways	Thane	Pilot
1993-1996	Murder, She Wrote	Charles George Drexler / Owen McLaglen / Robbie Dorow	3 episodes
1995	Law & Order	Igor Smith	Episode: "Rebels"
1995	New York Undercover	David Carson	Episode: "Buster and Claudia"
1995	New York News	Ex-Con	Episode: "Fun City"
1995	Pointman	Ronnie McCusak	Episode: "Here She Comes, Miss Murder"
1996	Central Park West	Randy Boyd	Episode: "Guess Who's Come to Annoy You?"
1996	The Big Easy	Jack Gentry	Episode: "The Gambler"
1996	Desert Breeze		Pilot
1997	The Visitor	Alex Burton
1998	ER	Keith Reynolds	Episode: "My Brother's Keeper"
1998	Brimstone	Assistant D.A. Stewart Lambert	Episode: "Executioner"
1999	Strange World	Gil Sandifer	Episode: "Azrael's Breed"
1999	Star Trek: Voyager	Gaul	Episode: "Dragon's Teeth"
2000	Harsh Realm	Priest	Episode: "Camera Obscura"
2000	Profiler	Martin Lewis	Episode: "Tsuris"
2000	Seven Days	Major Gene Hastings	Episode: "Space Station Down"
2000	La Femme Nikita	Henry Collins	Episode: "Toys in the Basement"
2001	Thieves	Special Agent Shue	10 episodes
2001	Law & Order: Criminal Intent	Dr. Peter Kelmer	Episode: "The Good Doctor"
2001	The West Wing	Morgan Ross	Episode: "Ellie"
2002	Haunted	Henry	Episode: "Pilot"
2002-2003	Presidio Med	Sean	5 episodes
2004	CSI: Miami	Freddy Coleman	Episode: "Addiction"
2003-2005	Carnivàle	Tommy Dolan	13 episodes
2005	Point Pleasant	Demon Dance Host	Episode: "Last Dance"
2005-2009 2016	Prison Break	Theodore "T-Bag" Bagwell	75 episodes
2009-2010	Heroes	Samuel Sullivan	19 episodes
2010	Stargate Universe	Simeon	6 episodes
2010	Chase	Jack Druggan	Episode: "The Comeback Kid"
2010	Criminal Minds	Rhett Walden	Episode: "Reflection of Desire"
2011	Shameless	Rod	2 episodes
2011	Breakout Kings	Theodore "T-Bag" Bagwell	Episode: "The Bag Man"
2013	Cult	Roger Reeves/Billy Grimm	13 Episodes
2013	The Blacklist	The Courier	Episode: "The Courier"
2013	Mob City	Sid Rothman	6 episodes
2014-2015	Hawaii Five-0	Internal Affairs Officer	2 episodes
2014	Arrow	William Tockman/Clock King	Episode: "Time of Death"
2014	The Flash	William Tockman/Clock King	Episode: "Power Outage"
2015	Chicago Fire	Adrian Gish/Trenton Lamont	Episode: "3 Bells"
2015	Chicago PD	Adrian Gish/Trenton Lamont	Episode: "A Little Devil Complex"
2015	Texas Rising	Empresario Buckley	4 episodes
2015	Public Morals	Captain Johanson	4 episodes
2015-2016	iZombie	Angus McDonough	4 episodes
2015	NCIS	Benson Long	Episode: "Personal Day"
2015	American Horror Story: Hotel	Lieutenant	Episode: "Room Service"
2017	Twin Peaks	TBA

Theatre

• A Little Night Music - Northwestern (1977)
• The Ruling Class - Northwestern (1979)
• The Merchant of Venice - Northwestern (1979/80)
• Ties - Chicago (Victory Gardens) (1981)
• Class Enemy - Evanston (Next) (1981)
• Lakeboat - Chicago (Goodman) (1982)
• The Life and Adventures of Nicholas Nickleby - Chicago (1982)
• Dark of the Moon - Sarasota (1983)
• Life Signals - Sarasota (1983)
• Sherlock Holmes - Sarasota(1983)
• The Philanthropist - New York (Stage 73) (1983)
• Savage Amusement - New York (1984)
• Romance - New York (Young Playwrights Festival) - (Joseph Papp Public Theater/Martinson Hall) (1984)
• The Person I Once Was - Louisville (1984)
• The Very Last Lover of the River Cane - Louisville (Theatre of Louisville) (1985)
• Available Light - Louisville (Theatre of Louisville) (1985)
• Groves of Academe - Cluj (Romania) (1985)
• A Midsummer Night's Dream - New York (New York Shakespeare Festival) (1987)
• Romeo and Juliet - New York (1988)
• The Legend of Oedipus - Williamstown (Williamstown Theatre Festival) (1988)
• Les Liaisons Dangereuses - Williamstown (Williamstown Theatre Festival) (1988)
• Nebraska - La Jolla (1989)
• Ice Cream With Hot Fudge - New York (1990)
• Bobby, Can You Hear Me? - Waterford (1990)
• Buster Comes Through - Waterford (1990)
• Lake No Bottom - New York (1990)
• Dinosaur Dreams - Waterford (1991)
• Home Grown - Waterford (1991)
• Orestes - Los Angeles (1992)
• Salomé - New York (1992)
• Pal Joey - Boston (1992)
• Sweet Bird of Youth - London (UK) (1994)
• Pride's Crossing - San Diego (1997)
• The Summer Moon - Seattle (1998)

[ Source: Wikipedia ]