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, as Samuel Sullivan in the NBC series Heroes and as Roger Reeves and his series-counterpart Billy Grimm in the CW's network mystery series Cult. He has also appeared in the films Hitman (2007) and Transporter 3 (2008), and joined the cast of Heroes for its fourth and final season as Samuel Sullivan. He joined the cast of Stargate Universe for its second season, which aired in the US in the 2010 fall season. Knepper reprised his role as Theodore "T-Bag" Bagwell in the first season of Breakout Kings.
|Full Name at Birth||Robert Lyle Knepper|
|Date of Birth||July 8, 1959|
|Height||5' 9½" (177 cm)|
|Eye Color||Brown - Dark|
|High School||Maumee Highs School in Maumee, Ohio.|
|University||Northwestern University (1977-1981).|
|Claim to Fame||T-Bag on Prison Break|