Lew Ayres

Oliver Duffy

Laraine Day

Edwina 'Eddie' Brown

Basil Rathbone

Cesar Ferrari / Dr. H. Santelle

Walter Kingsford

Dr. Cromwall

Miles Mander

Dr. Kurt Immelman

Charles D. Brown

Police Inspector Gallagher

Cliff Clark

Police Lieutenant Allison

James Flavin

Police Lieutenant Schaeffer

Russell Gleason

Ogilvie

William Tannen

Devlan

Mark Daniels

Haguey

Bert Roach

Krum

Russell Hicks

Dr. Chandley

Charles Wagenheim

Fred F. Bixley

Robert Homans

Officer O'Garrity

Charles Lederer