Self (archive footage)
Captain Blue (voice)
Padre Jones
Carstairs
Stanton Case
Card Player
Dr. Tate
Geoffrey
Gerald /
Wink Persiman (TV interviewer)
Reporter
US President (voice) (uncredited)
Pinkerton
Dr. Baker
Sam Dozier
Narrator (voice) (uncredited)
Captain Blue
Cmdr. Ed Straker
Al Peterson
Henry Harris
Captain Blue
Col. Stewart
Smith
TV Announcer
Gang Boss (voice)
Victor Stackman
Com.te Ed Straker
Klaus Hergersheimer (uncredited)
Narrator
David Poulson
Army Captain (voice)
Aries-1B Lunar Shuttle Captain
Lt. Cmdr. Vance Cassidy (as Edward Bishop)
Hawaii CapCom (uncredited)
Lieutenant Hacker U.S.N. - Communications
American Astronaut
Narrator
Vogt
