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)