White Pongo

Richard Fraser

Geoffrey Bishop

Maris Wrixon

Pamela Bragdon

Lionel Royce

Peter Van Dorn

?

Al Eben

Hans Kroegert

Gordon Richards

Sir Harry Bragdon

?

Michael Dyne

Clive Carswell

George Lloyd

Baxter

Larry Steers

Dr. Kent

Milton Kibbee

Gunderson

Egon Brecher

Dr. Gerig

Joel Fluellen

Mumbo Jumbo

Ray Corrigan

White Pongo (uncredited)

Jack Perrin

Minor Role (uncredited)