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