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 (2005–2009, 2017), Samuel Sullivan in the final season of the NBC series Heroes (2009–2010), Angus McDonough in The CW series iZombie (2015–2018) and Rodney Mitchum in Showtime\'s revival of Twin Peaks (2017). He has also appeared in films such as Hitman (2007) and Transporter 3 (2008).\n', '

Knepper was born in Fremont, Ohio, and raised in Maumee, Ohio, the son of Pat Deck and Donald Knepper, 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, and after graduating from Maumee High School in 1977, he attended Northwestern University. 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.\n', '

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 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 Carnivàle, 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 also starred in a number of films; Good Night, and Good Luck, Hitman, Transporter 3 and The Day the Earth Stood Still.\n', '

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