Stephen Markle

as Jefferson Cox (1 episode)

as Dr. Gooding (1 episode)

as Dr. Strickland (1 episode)

as Hugo Wyland (1 episode)

as Theodore Snow (13 episodes)

as Cheerleader (Rupert)

as Senator Douglas (2 episodes)

as Roger Green (1 episode)

as Dr. Seymour Martin (1 episode)

as Cmdr. Ruiz (1 episode)

as Forensic Pathologist (1 episode)

as John Lawrence Wheeler

as Kevin Lee (2 episodes)

as Ed Warren

as Fred Newton

as Kova Tholl (1 episode)

as Interrogator

as Harry

as Clyde Flynn

as Tom Weston / 984

as Karl