Un americano a Roma

Alberto Sordi

Nando Moriconi

Maria Pia Casilio

Elvira

Ilse Peterson

Molly

Anita Durante

Mother of Nando

Giulio Calì

Father of Nando

Galeazzo Benti

Fred Buonanotte

Carlo Delle Piane

Cicalone Romolo

Rocco D'Assunta

Commissioner

Ivy Nicholson

Molly's friend

Charles Fawcett

Mr. Brooks

Caterine Alcajde

Ballet dancer

Archibald L. Lyall

Ambassador

Vincenzo Talarico

Honorable Borgiano

Luigi Giacosi

Doctor

Salvo Libassi

Tullio, radio technician

Marcello Giorda

Elderly spectator on TV

Leopoldo Trieste

Spectator on TV

Cristina Fantoni

Young spectator on TV

Ursula Andress

Astrid Sjöström

Gianni Baghino

Theater spectator