Michael Halsey

as Master of Arms

as Novak (1 episode)

as Grosette

as Dr. Bramwell

as Professor Abney (1 episode)

as Professor Hoyt (1 episode)

as Vershbow

as English Officer

as Rutherford Sirk (2 episodes)

as Inspector Balantine

as Marcus

as Narrator (voice)

as Narrator / Nebula (voice)

as Oken

as Tired Cop

as Cally

as Farmer Sitting at Campfire (uncredited)

as Motor Garage Owner

as Milos Vladic (1 episode)

as Cally

as Israel Hands

as Frank

as Vaughn (1 episode)

as Charles Beckman (1 episode), as Arthur Wolff (1 episode)