- Germán Cobos
- Robert Manning / Danny O'Connor / Agent Z-55
- Yôko Tani
- Su Ling
- Gianni Rizzo
- Barrow
- Maria Luisa Rispoli
- Sally
- Milton Reid
- To-go
- Leontine Snell
- Tania
- Francisco Sanz
- Prof. Larsen
- Bruno Ariè
- Barrow's henchman #2
- Susan Baker
- Sally
- José Calvo
- (as Anthony Blade)
- Giovanni Cianfriglia
- Barrow's Henchman
- Giuliano Dell'Ovo
- Barrow's Henchman
- Manuel Quintana
- (as Anthony Blade)