Director
Herman Hoffman
DIRECTOR
Writer
Cyril Hume
WRITER
Edmund Cooper
Stars (in credits order)
Richard Eyer
Timmie Merrinoe
Philip Abbott
Dr. Tom Merrinoe
Diana Brewster
Mary Merrinoe
Harold J. Stone
Gen. Swayne
Robert H. Harris
Prof. Frank Allerton
Dennis McCarthy
Col. Macklin
Alexander Lockwood
Arthur Kelvaney
John O'Malley
Prof. Baine
Robby the Robot
Robby
Gage Clarke
Dr. Bannerman
Than Wyenn
Prof. Zeller
Jefferson Searles
Prof. Foster
Alfred Linder
Martin
Ralph Votrian
1st Gate Sergeant
Michael Miller
2nd Gate Sergeant
Rayford Barnes
Capt. McLaren (uncredited)
Helen Kleeb
Miss Vandergrift (uncredited)
Marvin Miller
Robby the Robot (uncredited) (voice)
Alvy Moore
Scientist #4 (pranks scene) (uncredited)
Gary Vinson
Young soldier (uncredited)
