Cosmic Man
John Carradine
Dr. Karl Sorenson
Bruce Bennett
Radar Operator
John Erman
Major
Dwight Brooks
Dr. Steinholtz
Hal Torey
Sergeant
Alan Wells
Kathy Grant
Angela Greene
Col. Matthews
Paul Langton
Ken Grant
Scotty Morrow
Sgt. Gray
Lyn Osborn
Dr. "Rich" Richie
Walter Maslow
Gen. Knowland
Herbert Lytton
Master Sergeant
Ken Clayton
Bill, the Park Ranger
Harry Fleer
Director
Herbert S. Greene
Original Music Composer
Bert Shefter
Director of Photography
John F. Warren
Original Story
Arthur C. Pierce
Screenplay
Producer
Robert A. Terry
Editor
Helene Turner
Associate Producer
Harry Marshall
Special Effects
Charles Duncan
Paul Sawtell