Jason Beghe, Jon Seda, Sophia Bush, Jesse Lee Soffer, Patrick John Flueger, Marina Squerciati, LaRoyce Hawkins, Amy Morton, Brian Geraghty, Elias Koteas ; guest stars include Samuel Hunt, Clancy Brown, Markie Post, Bokeem Woodbine, Dash Mihok, Oliver Platt, James McDaniel, Michael Nouri, Peter Greene, Mariska Hargitay, Ice-T, Richard Thomas, Charisma Carpenter, S. Epatha Merkerson, Carl Weathers.