Ken Clark

Dick Malloy / Agent 077

Helga Liné

Dr. Elsa Freeman

Philippe Hersent

Heston - CIA Chief

Mitsouko

Kuan

Umberto Raho

Prof. Betz (as Umi Raho)

Susan Terry

Juanita

Antonio Gradoli

Lester (as Anthony Gradwell)

Andrea Scotti

Taxi Driver

Brand Lyonell

Peter Blades

Peter Bach

Franca Polesello

Malloy's Lover

Pulla Coy

Mirko Ellis

Dario Michaelis

Erika Blanc

Heston's secretary (as Erika Bianchi)

Alfredo Mayo

Ignazio Leone

URSS Agent

Tomás Blanco

John Jordan

Félix Fernández

Paul Mercey

Alfonso Giganti

Henchman