John Archer
Jim Barnes
Warner Anderson
Dr. Charles Cargraves
Tom Powers
General Thayer
Dick Wesson
Joe Sweeney
Erin O'Brien-Moore
Emily Cargraves
Steve Carruthers
Businessman at Meeting (uncredited)
Franklyn Farnum
Factory Worker (uncredited)
Jack Gargan
Everett Glass
Mr. La Porte (uncredited)
Kenner G. Kemp
Knox Manning
Himself (uncredited)
Mike Miller
Undetermined Secondary Role (uncredited)
Irving Pichel
Off Screen Narrator of Woody Woodpecker Cartoon (voice) (uncredited)
Cosmo Sardo
