Ray Danton

Bryan Cooper / Superdragon

Marisa Mell

Charity Farrel

Margaret Lee

Cynthia Fulton

Jess Hahn

Baby Face

Carlo D'Angelo

Fernand Lamas

Adriana Ambesi

Verna

Marco Guglielmi

Prof. Kurge

Solvi Stübing

Elizabeth

Gérard Herter

Coleman (as Gerard Haerther)

Jacques Herlin

Ross

Carlo Hintermann

Coleman

Pinkas Braun

(uncredited)

Christia Hester

(uncredited)

Benito Stefanelli

Kirk

Artemio Antonini

Van Opel Henchman (uncredited)

Giorgio Ferroni