On screen
Cast
24 credited performers
George Nader
Glenn Martin
Barbara Nichols
Gale Wilson
George Macready
Prof. Vaughn Dornheimer
Dolores Faith
Lisa Dornheimer
Hugh Beaumont
Austin Welles
Richard Arlen
National Intelligence
Richard Kiel
Dr. Kolos
Artwork unavailable
John Indrisano
Thor, the Butler
Artwork unavailable
Ted Durant
The Galaxy Being
Artwork unavailable
Tommy Leonetti
Reporter (uncredited)
Artwork unavailable
Walter Maslow
Character not listed
Artwork unavailable
Larry Barton
Character not listed
Artwork unavailable
Lori Lyons
Character not listed
Artwork unavailable
Benito Prezia
Character not listed
Artwork unavailable
Margaret Teele
Blonde Lab Assistant
Alean 'Bambi' Hamilton
Brunette Lab Assistant
Walter Abel
Dr. Munson
Lon Satton
Character not listed
Artwork unavailable
Mel Ruick
Dr. Munson (as Melville Ruick)
Artwork unavailable
Kim Satana
Dr. Lin Yung
Artwork unavailable
John Dasten
(as John Daston)
Artwork unavailable
Richard Schuyler
Character not listed
Artwork unavailable
William White
(as Bill Hampton)
Artwork unavailable
Andrew Johnson
(Uncredited)