Frankie Avalon as Agent Tommy Carter

George Nader as Agent Nick West

Shirley Eaton as Sumuru

Wilfrid Hyde-White as Sir Anthony Baisbrook

Klaus Kinski as President Boong

Patti Chandler as Louise

Salli Sachse as Mikki

Ursula Rank as Erna

Krista Nell as Zoe

Maria Rohm as Helga Martin

Paul Chang Chung as inspector Koo

Essie Huang as Kitty

Jon Fong as Colonel Medika

Denise Davreux as Sumuru Guard

Mary Cheng as Sumuru Guard

Jill Hamilton as Sumuru Guard

Lisa Gray as Sumuru Guard

Christine Lok as Sumuru Guard

Margaret Cheung as Sumuru Guard

Louise Lee as Sumuru Guard