크레딧 출연 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 Businessman at Meeting (uncredited) Everett Glass Mr. La Porte (uncredited) Kenner G. Kemp Businessman at Meeting (uncredited) Knox Manning Himself (uncredited) Mike Miller Undetermined Secondary Role (uncredited) Irving Pichel Off Screen Narrator of Woody Woodpecker Cartoon (voice) (uncredited) Cosmo Sardo Businessman at Meeting (uncredited) Grace Stafford Woody Woodpecker (voice) (uncredited) Bert Stevens Businessman at Meeting (uncredited) Ted Warde Brown (uncredited) 스텝 Irving Pichel Directing Robert A. Heinlein Writing George Pal Production Alford Van Ronkel Writing James O'Hanlon Writing Lee Zavitz Crew Ernst Fegté Art George Sawley Art Lionel Lindon Camera Duke Goldstone Editing Leith Stevens Sound