J. August Richards

as Jeff (2 episodes)

as Self

as Attorney Bruce Meriwether (3 episodes)

as Xavier Lind (1 episode)

as Victor Dashkov (10 episodes)

as Self (1 episode)

as Dr. Oliver Post (10 episodes)

as Xavier Lind (1 episode)

as Nathan Purcell (16 episodes)

as Bradley (10 episodes)

as Self (1 episode)

as Mike Peterson / Deathlok (10 episodes)

as George Morgan (1 episode)

as Mr. Blank (1 episode)

as ADA Bracken (2 episodes)

as Zach Adanto (1 episode)

as Dr. Vernon Watson (1 episode)

as Marcus McGrath (25 episodes)

as Travis Balden

as Billy Desmond (13 episodes)

as Young Richard Webber (2 episodes)

as John Shaffner (1 episode)

as Allan Marshall

as Bob Villa (1 episode)