Charlie Chan's Secret

Warner Oland

as Charlie Chan

Rosina Lawrence

as Alice Lowell

Charles Quigley

as Dick Williams

Henrietta Crosman

as Mrs. Henrietta Lowell

Edward Trevor

as Fred Gage

Astrid Allwyn

as Janice Lowell Gage

Herbert Mundin

as Baxter

Egon Brecher

as Ulrich

Gloria Roy

as Madame Carlotta Bowen

Ivan Miller

as Morton of Homicide

Arthur Edmund Carewe

as Professor Bowen

Jonathan Hale

as Warren T. Phelps

Jerry Miley

as Allen Colby

William Bailey

as Det. Harris

Francis Ford

as Captain of salvage ship

Bud Geary

as Policeman

Chuck Hamilton

as Policeman

Brick Sullivan

as Policeman

James T. Mack

as Fingerprint man

Landers Stevens

as Coroner