Trailer
Cast
Gage Clarke
Dr. Bannerman
Gary Vinson
Young soldier (uncredited)
Than Wyenn
Prof. Zeller
Ralph Votrian
1st Gate Sergeant
Michael Miller
2nd Gate Sergeant
Helen Kleeb
Miss Vandergrift (uncredited)
Richard Eyer
Timmie Merrinoe
Robert H. Harris
Prof. Frank Allerton
Alvy Moore
Scientist (uncredited)
Marvin Miller
Robby the Robot (voice) (uncredited)
Philip Abbott
Dr. Tom Merrinoe
Diane Brewster
Mary Merrinoe
Harold J. Stone
Gen. Swayne
Rayford Barnes
Capt. McLaren (uncredited)
Robby the Robot
Robby
Alexander Lockwood
Arthur Kelvaney