O Segredo da Caixa

Sidney Toler

Charlie Chan

Mantan Moreland

Birmingham Brown

Victor Sen Yung

Jimmy Chan

Tanis Chandler

Adelaide Brandt

Larry J. Blake

Rick Daniels

Kirk Alyn

Sgt. Reynolds

Rita Quigley

Clementine

Anne Nagel

Marcia

Helen Gerald

Ruby

Howard Negley

Cole King, Impresario

Lois Austin

Mrs. Thorn

Barbara Jean Wong

San Toy

Minerva Urecal

Miss Weebles, the Housekeeper

Margaret Brayton

Madge Mudge

Bettie Best

Winifred

Jan Bryant

Lois

Walden Boyle

Dr. George Brandt (uncredited)