Ken Clark

Dick Malloy / Agent 077

Acting

Helga Liné

Dr. Elsa Freeman

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Philippe Hersent

Heston - CIA Chief

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Mitsouko

Kuan

Acting

Umberto Raho

Prof. Betz (as Umi Raho)

Acting

Susan Terry

Juanita

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Antonio Gradoli

Lester (as Anthony Gradwell)

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Andrea Scotti

Taxi Driver

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Brand Lyonell

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Peter Blades

Acting

Peter Bach

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Franca Polesello

Malloy's Lover

Acting

Pulla Coy

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Mirko Ellis

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Dario Michaelis

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Erika Blanc

Heston's secretary (as Erika Bianchi)

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Alfredo Mayo

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Ignazio Leone

URSS Agent

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Tomás Blanco

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John Jordan

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Félix Fernández

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Paul Mercey

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Alfonso Giganti

Henchman

Acting