Robert Lyle Knepper (born July 8, 1959) is an American actor. He is best known for starring as Theodore "T-Bag" Bagwell in the Fox network's drama series, Prison Break, for which he was nominated for a Satellite Award. He has also appeared in the films Hitman (2007) and Transporter 3 (2008), and joined the cast of Heroes for its fourth season. Most recently, he joined the cast of Stargate Universe for its second season, which has started airing in the US in the 2010 fall season. Knepper is set to reprise his role as Theodore "T-Bag" Bagwell in the upcoming series Breakout Kings.
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Known For
Alzarfa
2025
The Lost Princess
Robert Goodman
2025
The Last Supper
Judas
2025
Mindcage
Lt. Owings
2022
The Retaliators
Otto
2022
The Moderator
Agent John Ross
2022
Dark Winds
The Priest · (1 episode)
2022
The Pact
Jay · (6 episodes)
2022
WarHunt
Sergeant Brewer
2022
Nova Vita
Mr. Chinzano · (10 episodes)
2021
Lena and Snowball
Percy
2021
Redemption Day
Mysterious Oil Lobbyist
2021
The Trapped
Victor
2020
Battle of Defense 2
2020
Battle of Defense
2020
S.W.A.T.
2019
Voice of the Nation
2019
1st Born
Joe
2019
Edge of Fear
Victor Novak
2018
Frat Pack
Kush
2018
Twin Peaks: The Phenomenon
Self
2017
Tell It Martin
Self
2017
The Polish Accountant
Self
2017
The Number of Completion
Self
2017
A Bloody Finger in Your Mouth
Self
2017
Dating Game Killer
Detective Jim Hamell
2017
The Orville
Hamelac · (1 episode)
2017
Badsville
Mr. Gavin
2017
Carousel
Wallace
2017
Jack Reacher: Never Go Back
General Harkness
2016
Hard Target 2
Jonah Aldrich
2016
Where is Rocky II?
Cal Joshua (segment "Monument One")
2016
Cold Deck
Turk
2015
The Hunger Games: Mockingjay - Part 2
Antonius
2015
Texas Rising
Empresario Buckley · (5 episodes)
2015
The Hoarder
Vince
2015
iZombie
Angus McDonough · (15 episodes)
2015
The Mockingjay Lives: The Making of the Hunger Games: Mockingjay Part 1
Self (Antonius)
2015
The Hunger Games: Mockingjay - Part 1
Antonius
2014
Ride
Peter
2014
The Flash
William Tockman / Clock King · (1 episode)
2014
Mob City
Sid Rothman · (6 episodes)
2013
The Blacklist
The Courier · (1 episode)
2013
Percy Jackson: Sea of Monsters
Kronos
2013
R.I.P.D.
Nawlicki
2013
Cult
Billy Grimm · (13 episodes)
2013
Seal Team Six: The Raid on Osama Bin Laden
Lieutenant Commander
2012
Arrow
William Tockman / Clock King · (1 episode)
2012
My Way
Frank Sinatra
2012
American Horror Story
Lieutenant · (1 episode)
2011
Homeland
Jamie McClendon · (5 episodes)
2011
Earth's Final Hours
John Streich
2011
Breakout Kings
Theodore 'T-Bag' Bagwell · (1 episode)
2011
Shameless
Rod · (2 episodes)
2011
Burning Daylight
Burning Daylight
2010
Hawaii Five-0
IA Detective Rex Coughlin · (2 episodes)
2010
Stargate Universe
Simeon · (6 episodes)
2009
Live from Studio Five
Self · (1 episode)
2009
Prison Break: The Final Break
Theodore 'T-Bag' Bagwell
2009
The Day the Earth Stood Still
Colonel
2008
Transporter 3
Johnson
2008
Turok: Son of Stone
Chichak
2008
Hitman
Yuri Marklov
2007
Heroes
Samuel Sullivan · (19 episodes)
2006
Criminal Minds
Rhett Walden · (1 episode)
2005
Good Night, and Good Luck.
Don Surine
2005
Prison Break
Theodore 'T-Bag' Bagwell · (88 episodes)
2005
Hostage
Wil Bechler
2005
Point Pleasant
(1 episode)
2005
Species III
Dr. Abbot
2005
NCIS
Benson Long · (1 episode)
2003
Carnivàle
Tommy Dolan · (12 episodes)
2003
Presidio Med
Sean · (5 episodes)
2002
CSI: Miami
Freddy Coleman · (1 episode)
2002
Law & Order: Criminal Intent
Dr. Peter Kelmer · (1 episode)
2001
Thieves
Special Agent Shue · (10 episodes)
2001
Jackie, Ethel, Joan: The Women of Camelot
Robert F. Kennedy
2001
Jackie, Ethel, Joan: The Women of Camelot
Robert F. Kennedy · (2 episodes)
2001
Lady in the Box
2001
Love & Sex
Gerard Boussard
2000
Absence of the Good
Glenn Dwyer
1999
Harsh Realm
(1 episode)
1999
The West Wing
Morgan Ross · (1 episode)
1999
Kidnapped in Paradise
1999
Brimstone
Assistant D.A. Stewart Lambert · (1 episode)
1998
Seven Days
(1 episode)
1998
Jaded
Freddy
1998
Phantoms
Agent Wilson
1998
The Stringer
1998
The Visitor
Alex Burton · (1 episode)
1997
The Undercover Kid
Bo the Dog
1997
You Are Here
Jack
1997
Everyone Says I Love You
Greg
1996
Profiler
(1 episode)
1996
MugShot
Joe
1996
Voice from the Grave
Milosh
1996
Dead of Night
Christian
1996
New York News
ex-con · (1 episode)
1995
Search and Destroy
Daniel Strong
1995
Star Trek: Voyager
Gaul · (1 episode)
1995
ER
Keith Reynolds · (1 episode)
1994
Under Heat
Milo
1994
When the Bough Breaks
Lt. Jimmy Creedmore
1994
Getting Out
Carl
1994
Pointman
Johnny
1994
Zelda
Wilson
1993
Doorways
Thane
1993
Red Shoe Diaries 2: Double Dare
Nick Willard (archive footage)
1993
Gas Food Lodging
Dank
1992
Red Shoe Diaries
Nick Willard · (1 episode)
1992
Where the Day Takes You
Rock Singer
1992
Perry Mason: The Case of the Fatal Fashion
Kim Weatherly
1991
Session Man
Torrey Cole
1991
Commando Earth Force
Dr. Peter Roland
1990
E.A.R.T.H. Force
Dr. Peter Roland · (6 episodes)
1990
Law & Order
Daniel "Igor" Smith · (1 episode)
1990
Young Guns II
Deputy Carlyle
1990
Twin Peaks
Rodney Mitchum · (6 episodes)
1990
Snoops
Steve Shaver · (1 episode)
1989
Renegades
Marino
1989
China Beach
(2 episodes)
1988
D.O.A.
Nicholas Lang
1988
Made in Heaven
Orrin
1987
Star Trek: The Next Generation
Wyatt Miller · (1 episode)
1987
Tour of Duty
Allen · (1 episode)
1987
Police Story: The Freeway Killings
Karl James
1987
Wild Thing
Wild Thing
1987
That's Life!
Steve Larwin
1986
L.A. Law: Pilot
Georgia/George Buckner
1986
L.A. Law
George "Georgia" Buckner · (2 episodes)
1986
L.A. Law
David Orcott · (1 episode)
1986
The Twilight Zone
(segment "Joy Ride") · (1 episode)
1985
The Twilight Zone
(segment "Private Channel") · (1 episode)
1985
Murder, She Wrote
Charles George Drexler · (1 episode)
1984
Murder, She Wrote
Owen McLaglen · (1 episode)
1984
Murder, She Wrote
Robbie Dorow · (1 episode)
1984
Doorways
Thane · (1 episode)