James Gleason as Police Insp. Oscar Piper

Helen Broderick as Hildegarde Withers

Louise Latimer as Barbara Foley

Owen Davis Jr. as Eddie Fry

John Arledge as Joey Thomas

John Carroll as Latigo Wells

Leslie Fenton as Don Gregg

Christian Rub as Chris Thomas

Sheila Terry as Violet Feverel

Willie Best as 'High-Pockets'

John Miltern as Patrick Gregg

Spencer Charters as Warden Sylvester Mahoney

James Donlan as Detective Kane

Gustav von Seyffertitz as Dr. Bloom, Police Dept.

Frank Reicher as Dr. Peters

Harry Jans as Addie, Reporter

Murray Alper as Taxi Driver (uncredited)

Barlowe Borland as Pipe Expert (uncredited)

Harry Bowen as Checker Taxi Driver (uncredited)

Maurice Cass as Mr. Schultz, Handwriting Expert (uncredited)

Maxine Jennings as Girl in Waiting Car (uncredited)

Mike Lally as Reporter (uncredited)

Frank Marlowe as Horseman on Bridle Path (uncredited)

Tony Martin as Man with Violet (uncredited)

Frank Mills as Horseman on Bridle Path (uncredited)

Jack Rice as Violet's Hotel Manager (uncredited)

Dewey Robinson as Turkish Bath Attendant (uncredited)

Monte Vandergrift as Detective Bart (uncredited)