Guest Stars Roy Skelton voices Cyberman David Dodimead as Barclay Steve Plytas as Wigner Robert Beatty as General Cutler Dudley Jones as Dyson Christopher Matthews as Radar Technician Ellen Cullen as Geneva Technician Earl Cameron as Williams Alan White as Schultz Gregg Palmer as Shav Glenn Beck as T.V. Announcer Reg Whitehead as Krail Harry Brooks as Talon
