Jean Sorel

Character: Dr. George Dumurrier

Marisa Mell

Character: Susan Dumurrier / Monica Weston

Elsa Martinelli

Character: Jane Bleeker

Alberto de Mendoza

Character: Henry Dumurrier

John Ireland

Character: Inspector Wald

Riccardo Cucciolla

Character: Benjamin Wormser

Franco Balducci

Character: Officer Loveday

Bill Vanders

Character: Insurance Agent

Giuseppe Addobbati

Character: Brent

Félix Dafauce

Character: Royal Insurance Official

Jesús Puente

Character: Sergeant Rodriguez

George Rigaud

Character: Arthur Mitchell

Jean Sobieski

Character: Larry

Faith Domergue

Character: Marta

Lucio Fulci

Character: Graphologist

Malisa Longo

Character: Elizabeth O'Neill

Geoffrey Copleston

Character: District Attorney

Raffaele Mottola

Character: Governor

Bobby Rhodes

Character: Prison Guard