Allan Lane (Richard Masters)
Warner Oland (Charlie Chan)
Katherine de Mille (Yvanne Roland)
Pauline Moore (Betty Adams)
Keye Luke (Lee Chan)
C. Henry Gordon (Arthur Hughes)
Fred Kelsey (Cop)
Tom McGuire (Morris)
Philip Morris (Cop)
Minerva Urecal (Olympic Matron)
Guy Usher (Inspector Regan)
Emmett Vogan (Ship's Officer)
Frank Conroy (Mr. Whitely)
Edward Keane (Colonel)
Boris Karloff (Gravelle)
Don Brodie (Radio Announcer)
Maurice Cass (Mr. Arnold)
George Chandler (Ship's Radio Operator)
William Demarest (Sgt. Kelly)
George Gaye (Enrico Barelli)
Thomas Beck (Phil Childers)
Nedda Harrigan (Mme. Lucretia Barelli)
Charlotte Henry (Mlle. Kitty)
Selmar Jackson (Navy Commander)
Margaret Irving (Mme. Lilli Rouchelle)
Morgan Wallace (Zaraka)
Fredrik Vogeding (Inspector Strasser)
Andrew Tombes (Chief Scott)
Howard Hickman (Dr. Burton)
John Eldredge (Cartwright)
Layne Tom, Jr. (Charlie Chan, Jr.)
Jonathan Hale (Hopkins)