Christopher Lee (Dr. Fu Manchu), Tsai Chin (Lin Tang) and Howard Marion-Crawford (Dr. Petrie) are the only actors to appear in all five "Fu Manchu" films.
The video release of this film includes a clip of the climax from "Le masque de Fu Manchu (1965)." This caused some initial confusion as some viewers thought Nigel Green was going to reprise his role of Nayland Smith.
Nigel Green declined the opportunity to reprise his role of Nayland Smith.