Chester Morris

Horatio 'Boston Blackie' Black

Acting

June Vincent

Doris Howell

Acting

Richard Lane

Insp. William R. Farraday

Acting

Patricia Barry

Joan Howell (as Patricia White)

Acting

George E. Stone

The Runt

Acting

Frank Sully

Sgt. Matthews

Acting

Edward Norris

Igor Borio

Acting

Fay Baker

Margie O'Reilly, alias Sandra Doray

Acting

William Forrest

Mason Carter

Acting

Sarah Selby

Claire Carter

Acting

Mary Currier

Helen Kenyon

Acting

Bess Flowers

Party guest

Acting