- Romano Kristoff
- Kenzo
- Mike Monty
- David Reynolds
- Ken Watanabe
- Professor
- Gwendolyn Hung
- Laura Reynolds
- Tony Carreon
- Mr. Duncan
- Jim Gaines
- Reynold's Assistant
- Willie Williams
- (as Willy Williams)
- Berto Spoor
- Customer Scuba shop / Ninja
- David Anderson
- FBI Chief
- George Gyenes
- Geoffrey the Fisherman
- Tony Lao
- Van Driver
- Warren McLean
- Scientist
- Ronnie Patterson
- Policeman
- Willy Schober
- Bar Patron
- Paul Vance
- Shop Owner
