On screen
Cast
15 credited performers
Peter Graves
Doug Martin
James Seay
Colonel Banks
Steve Pendleton
Briggs
Barbara Bestar
Ellen Martin
Shepard Menken
Major Clift
Artwork unavailable
Jack Daly
Power House Guard
Artwork unavailable
Ron Kennedy
Sentry
Ben Welden
Pilot
Artwork unavailable
Burt Welden
Sergeant
Lester Dorr
Station Attendant
Artwork unavailable
Ruth Bennett
Secretary
Artwork unavailable
Mark Scott
Narrator
Frank Gerstle
Dr. Curt Kruger
John Frederick
Deneb /The Tala
Artwork unavailable
Roy Engel
1st Police Dispatcher (uncredited)