Discover
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)
Camera
Vincent J. Farrar
Director of Photography
Directing
Phil Rosen
Director
Editing
Ace Herman
Editor
Camera
Vincent J. Farrar
Director of Photography
Directing
Phil Rosen
Director
Editing
Ace Herman
Editor