Discover
Ray Molina
Dr. Blake
Ebby Rhodes
Dr. Blake's Daughter
Ern Dugo
Prof. Grant
Forest Duke
Dr. Bernstein
Will Long
Prof. Larsen
Ben Smith
Prof. Long
Chuck Alford
Capt. Popejoy
Ross Thompson
Actor
Philip Ahn
Mao Tse Tung (uncredited)
Art
Emile Nizet
Set Designer
Camera
Charles Nizet
Director of Photography
Costume & Make-Up
R. M. Zapata
Costumer
Crew
Si DeBardas
Presenter
Editing
George Bartoni
Editor
Art
Emile Nizet
Set Designer
Camera
Charles Nizet
Director of Photography
Costume & Make-Up
R. M. Zapata
Costumer
Crew
Si DeBardas
Presenter
Editing
George Bartoni
Editor