John Pickard

as Henry (1 episode)

as Governor

as Wynberg

as Col. Caine (1 episode), as Jim Turner (1 episode)

as Ed Culbertson

as Preston

as Dr. Schetman

as Tom Donnelly (1 episode)

as Benson (1 episode)

as Sgt. Braddock

as Frank Ross

as Jerome Selby

as Giant Guard (1 episode)

as Wilkens (1 episode), as Trooper (1 episode)

as Jake Coffin (1 episode), as Sgt. Williams (1 episode)

as Lieutenant

as Carl Kersey (1 episode)

as Pete

as Fire Lieutenant (1 episode), as Ned Morse (1 episode)

as Doctor (1 episode), as Commander Wardman (1 episode)

as Maj. Marcus Reno (1 episode)