Warner Oland as Charlie Chan

Pat Paterson as Carol Arnold

Thomas Beck as Tom Evans

Rita Hayworth as Nayda

Stepin Fetchit as Snowshoes

Jameson Thomas as Dr. Anton Racine

Frank Conroy as Prof. John Thurston

Nigel De Brulier as Edfu Ahmad

George Irving as Prof. Arnold

Paul Porcasi as Insp. Fouad Soueida

Arthur Stone as Dragoman

James Eagles as Barry Arnold

Frank Reicher as Dr. Jaipur

Anita Brown as Showshoes' Friend

John Davidson as Chemist Daoud Atrash

John George as Harip, The Grave Opener (uncredited)