The Secret Witness
Lois Martin
Capt. McGowan
Bella
Jeff - Building Janitor
Officer Brannigan
Lewis Leroy
Arthur Jones aka Casey
Gunner - Bodyguard
Sylvia Folsom
Herbert 'Bert' Folsom
Detective
Mike - Speakeasy Proprietor
Tess Jones
Larson - Building Engineer
Gunner's Woman Friend
Police Commissioner Martin
Contact Detective
Radio Announcer's Voice
