cast
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Ralph Bellamy
Barry Eldon
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Tala Birell
Renee Dupont
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Victor Kilian
Tiny Davis
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Douglass Dumbrille
Victor Arnold
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Robert Middlemass
Drewen
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Edward Van Sloan
Schutter
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Niles Welch
"Marconi"
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Robert Allen
Bill Lewis
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Billie Seward
Mona Greenwood
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Marianne Edwards
Dorothy Dunlap
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Geneva Mitchell
Gertie Dunlap
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Wyrley Birch
Holden
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Pat Flaherty
Frank Dunlap
- Wiley Post Himself
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Charles C. Wilson
Newspaper editor
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Inez Courtney
Second Nurse (uncredited)
- Robert Stanley Pete's Pal (uncredited)
- Ethel Bryant
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Egon Brecher
Schulter's Henchman
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Al Hill
Arnold's Chief Henchman