John Archer as Jim Barnes

Warner Anderson as Dr. Charles Cargraves

Tom Powers as General Thayer

Dick Wesson as Joe Sweeney

Erin O'Brien-Moore as Emily Cargraves

Steve Carruthers as Businessman at Meeting (uncredited)

Franklyn Farnum as Factory Worker (uncredited)

Jack Gargan as Businessman at Meeting (uncredited)

Everett Glass as Mr. La Porte (uncredited)

Kenner G. Kemp as Businessman at Meeting (uncredited)

Knox Manning as Himself (uncredited)

Mike Miller as Undetermined Secondary Role (uncredited)

Irving Pichel as Off Screen Narrator of Woody Woodpecker Cartoon (voice) (uncredited)

Cosmo Sardo as Businessman at Meeting (uncredited)

Grace Stafford as Woody Woodpecker (voice) (uncredited)

Bert Stevens as Businessman at Meeting (uncredited)

Ted Warde as Brown (uncredited)