Warner Oland
Dr. Fu Manchu
Neil Hamilton
Dr. Jack Petrie
Jean Arthur
Lia Eltham
O. P. Heggie
Inspector Nayland Smith
William Austin
Sylvester Wadsworth
Claude King
Sir John Petrie
Charles A. Stevenson
General Petrie
Evelyn Selbie
Fai Lu
Noble Johnson
Li Po
Laska Winter
Fu Mela
Wong Chung
Chinese Official (uncredited)
Lawford Davidson
Chappell Dossett
Charles Giblyn
