William Sargent

as Hurath (voice)

as Endor (voice)

as Blacksmith (voice)

as Goldman (1 episode)

as Harley Rawls (1 episode)

as Lt. Driscoll (1 episode)

as Pilot

as Dr. Abe Galloway (1 episode)

as Dr. Ken Harrison (1 episode), as Dr. John Devin (1 episode)

as Dr. Edward Stoner (1 episode)

as Dr. Thomas Leighton (1 episode)

as Sgt. Denny (1 episode)

as Peter Granville (1 episode), as Walter Fletcher (1 episode), as Dr. Stone (1 episode)

as Lt. Col. Count von Stauffenberg

as Project Manager (1 episode), as Dr. Mel Avery (1 episode)