All Cast
Craig Stevens
Col. Joe Parkman
William Hopper
Dr. Nedrick 'Ned' Jackson
Alix Talton
Marge Blaine
Donald Randolph
Gen. Mark Ford
Florenz Ames
Prof. Anton Gunther
Paul Smith
Corporal
Paul Campbell
Lt. Fred Pizar
Pat Conway
Sgt. Pete Allen
Phil Harvey
Lou
Helen Jay
Mrs. Farley
Bing Russell
State Trooper
David McMahon
Capt. Frank Carver
Marvin Miller
Narrator (voice)
Michael Forest
Photographer (uncredited)