Latest guest announcement Robert Knepper
Prison Break (TV series) - Theodore 'T-Bag' Bagwell (80 episodes, 2005-2009)
SGU Stargate Universe (TV series) - Simeon (6 episodes, 2010)
Heroes (TV series) - Samuel Sullivan (19 episodes, 2009-2010)
Carnivàle (TV series) - Tommy Dolan (13 episodes, 2003-2005)
The Day the Earth Stood Still - Colonel
R.I.P.D. - Nawlicki
Transporter 3 - Johnson
Hitman - Yuri Marklov
Good Night, and Good Luck. - Don Surine
Hostage - Wil Bechler
Species III (video) - Dr. Abbot
Phantoms - Agent Wilson (as Rob Knepper)
Young Guns II - Deputy Carlyle
Cult (TV series) - Billy Grimm / Roger Reeves (13 episodes, 2013)
Star Trek: Voyager (TV series) - Gaul (1 episode, 1999)
Star Trek: The Next Generation (TV series) - Wyatt Miller (1 episode, 1987)
http://imdb.com/name/nm0460694/