Dr. Goldfoot / General Willis

Vincent Price

Bill Dexter

Fabian

Franco

Franco Franchi

Rosanna

Laura Antonelli

Ciccio

Ciccio Ingrassia

Colonel Doug Benson

Francesco Mulé

Goldfoot's Assistant

Moana Tahi

Craig Gamble (uncredited) (archive footage)

Frankie Avalon

Gloria Paul

Diane (uncredited) (archive footage)

Susan Hart

Fernando Rey

Todd Armstrong (uncredited) (archive footage)

Dwayne Hickman

Motorist Who Hits Diane (uncredited) (archive footage)

Aron Kincaid

D.J. Pevney

Fred Clark

Hardjob - Dr. Goldfoot's Assistant (uncredited)

Moa Tahi

Fong (uncredited)

George Wang

Goldfoot Henchman (uncredited)

Ennio Antonelli

Goldfoot Henchman (uncredited)

Amerigo Santarelli

Igor

Jack Mullaney

Bald Goldfoot Henchman (uncredited)

Veriano Ginesi

Robot (uncredited)

Silvana Bacci

Robot (uncredited)

Antonietta Fiorito

US Army Official (uncredited)

Gianfranco Funari

American General (uncredited)

Louis M. Heyward

Angel with Harp (uncredited)

Mario Bava