Richard Harrison
— CIA Agent Matthews
Romano Kristoff
— Zero
Alphonse Beni
— Michael Baiko
Lorenzo Piani
— Luca
Donald Hodson
— Gun Runner (as Don Hobson)
Sebastian Harrison
— TV Interviewer
Riccardo Petrazzi
— Henchman
Enzo D'Ausilio
Russel Case
Del Russel
Robert Harrison
— Hospital Guard
Ninette Assor
— Olga
Gordon Mitchell
— Dr. Andrew Milhench