Wynne Gibson
— Lynn Ashton
Onslow Stevens
— Francis Scott Graham
Richard 'Skeets' Gallagher
— The Reporter--Miller (as 'Skeets' Gallagher)
Alan Dinehart
— Police Inspector Thomas
Warren Hymer
— Sam Collins
William Collier Sr.
— The Detective--Police Sgt. Melody
John Wray
— Willie McGuire
Edward Van Sloan
— Professor Franz Lubeck
J. Farrell MacDonald
— The Doorman--Mike Costello
Barbara Weeks
— Nora