Fingers at the Window

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

Iris Adrian Babe Stanton (uncredited)

Margaret Bert Mrs. Geversar (uncredited)

Sam Ash Theater Stage Manager (uncredited)

Robert Bradford Whistles 'Over the Rainbow' (uncredited)

Ralph Brooks Dr. Shepherd (uncredited)