Billy Lo / Hai Tien (original 1972 footage)
Jim Marshall
Dr. Land
Steiner
Ann Morris
Carl Miller
Stick
Hakim / Mantis (original 1972 footage) (archive footage)
Fighter (archive footage)
Pasqual / Third Floor Guardian (original 1972 footage) (as Danny Inosanto)
John
Lo Chen (as Hung Kim Po)
Henry Lo
David (as Tony Leung)
Surgeon
Doctor
Businessman 1
Businessman 2
Boat Captain / Hakim (double)
Record Producer
Director
Assistant Director
Billy Lo (as Kim Tai Jong)
Fighter accomplice (original 1972 footage) (archive footage)
Restaurant Fighter / Quarter Floor Guardian (original 1972 footage) (archive footage)
Charlie Wang / Fighter accomplice antagonist (original 1972 footage) (archive footage)
Lau Yea-chun (archive footage) (as Casanova Wong)
(as Yeung See)
Billy Lo / Biker in black (as Bill Yuen)
Fighter (closing credits) (archive footage) (uncredited)
Ming Tao (uncredited)
Carl's Second #1 (uncredited)
Ringside Commentator (uncredited)
First Floor Guardian (original 1972 footage) (archive footage) (uncredited)
Billy Lo (voice) (uncredited)
(uncredited)
Carl Miller's second (uncredited)
Macau fighter (uncredited)
(archive footage) (uncredited)
Thug (uncredited)
Blonde Script Girl on 'Way of the Dragon' & 'Fist of Fury' Set (uncredited)
Lo Chen's second (uncredited)