Sidney Toler
Charlie Chan

Fortunio Bonanova
Insp. Luis Carvero

Benson Fong
Tommy Chan

Robert Emmett Keane
Alfred Wyans (as Robert E. Keane)

Willie Best
Chattanooga Brown

Carol Hughes
Marguerite Fontain

Marjorie Hoshelle
Countess Irena Masak

Barton Yarborough
Joseph Brandish

George Meeker
Edmond Slade

Don Costello
Charles Masack

Charles Trowbridge
Prentiss

Mildred Boyd
Josephine

Barbara Jean Wong
Iris Ling (as Jean Wong)

Donald D. Taylor
Walter Dorn (as Donald Dexter Taylor)