Rock Hudson

Robert L. Talbot

Gina Lollobrigida

Lisa Helena Fellini

Sandra Dee

Sandy Stevens

Bobby Darin

Tony

Walter Slezak

Maurice Clavell

Brenda De Banzie

Margaret Allison

Rossana Rory

Anna

Ronald Howard

Spencer

Joel Grey

Beagle

Joan Freeman

Linda

Pietro De Vico

Poliziotto (uncredited)

Charles Fawcett

Warren (uncredited)

Giacomo Furia

Poliziotto (uncredited)

Renato Malavasi

Man (uncredited)

Mimmo Poli

Commissario (uncredited)

John Stacy

Douglas (uncredited)

Milena Vukotić

Melinda (Maid) (uncredited)