Congo Bill
Don McGuire
Lureen / Ruth Culver
Cleo Moore
Ivan
Rusty Wescoatt
Rogan
Anthony Warde
Tom MacGraw
Stephen Carr
Blinky
William Fawcett
Nagu
Frank Lackteen
Narrator
Knox Manning
Frank
Frank O'Connor
Torturer
Eddie Parker
Nagu's Friend
Stanley Price
Circus Henchman
Wally West
Cameron
Jack Ingram
Andre Bocar
Leonard Penn
Bernie MacGraw
I. Stanford Jolley
Dr. Greenway
Nelson Leigh
Kleeg
Charles King
Zalea
Armida
Morelli
Hugh Prosser
Kahla
Neyle Morrow
Villabo
Fred Graham
Director
Spencer Gordon Bennet
Producer
Sam Katzman
Thomas Carr
Screenplay
Lewis Clay
Arthur Hoerl
George H. Plympton
Screenstory
Whitney Ellsworth
Director of Photography
Ira H. Morgan