Neil Hamilton

Tony White

Doris Hill

Helen MacDonald

Warner Oland

Rupert Borka

Fredric March

Richard Hardell

Chester Conklin

George (Studio Gateman)

Florence Eldridge

Blanche Hardell

Guy Oliver

Hank MacDonald - the Studio Watchman

Donald MacKenzie

Captain Coffin

Gardner James

Ted MacDonald

Eugene Pallette

Detective Lieutenant Dirk

E.H. Calvert

R.C. Grant

Mischa Auer

Grant's Secretary