Vincent Price

Dr. Goldfoot / General Willis

Fabian

Bill Dexter

Franco Franchi

Franco

Ciccio Ingrassia

Ciccio

Francesco Mulè

Colonel Doug Benson

Laura Antonelli

Rosanna

Frankie Avalon

Craig Gamble (uncredited) (archive footage)

Susan Hart

Diane (uncredited) (archive footage)

Dwayne Hickman

Todd Armstrong (uncredited) (archive footage)

Aron Kincaid

Motorist Who Hits Diane (uncredited) (archive footage)

Moa Tahi

Hardjob - Dr. Goldfoot's Assistant (uncredited)

George Wang

Fong (uncredited)

Ennio Antonelli

Goldfoot Henchman (uncredited)

Amerigo Santarelli

Goldfoot Henchman (uncredited)

Veriano Ginesi

Bald Goldfoot Henchman (uncredited)

Silvana Bacci

Robot (uncredited)

Antonietta Fiorito

Robot (uncredited)

Gianfranco Funari

US Army Official (uncredited)

Louis M. Heyward

American General (uncredited)

Mario Bava

Angel with Harp (uncredited)