Warner Oland

Charlie Chan

Boris Karloff

Gravelle

Keye Luke

Lee Chan

William Demarest

Sergeant Kelly

Guy Usher

Inspector Regan

Margaret Irving

Mme. Lilli Rochelle

Gregory Gaye

Enrico Borelli

Nedda Harrigan

Mme. Lucretia Borelli

Frank Conroy

Mr. Whitely