The Studio Murder Mystery

Donald Meek

— Dr. Crabtree

John Hamilton

— Insp. Carr

Robert Middlemass

— Boris Seminoff

Thelma Tipson

— Dolly Demarest

Walter Fenner

— Ian Stevens

Jane Bramley

— Mae Norton

Frank McNellis

— Monitor Man (uncredited)

Harry Tyler

— Assistant Director (uncredited)

Herschel Mayall

— Medical Examiner (uncredited)