May Britt

as Nadia Ulianova, periodista Soviética

Francisco Rabal

as Sergio Gresky

Bernard Blier

as Don Lorenzo

Vera Carmi

as Elena Ulianova, hermana de Nadia

Julio Peña

as Ruggero Scotto

Cristina Grado

as Susana

Nino Manfredi

as Mario Giorgi

Augusto Pennella

as Nandino