María Félix
— Messalina
Georges Marchal
— Caio Silvio
Memo Benassi
— Claudio
Delia Scala
— Cinzia
Erno Crisa
— Timo
Carlo Ninchi
— Tauro
Camillo Pilotto
— Ottavio
Jean Tissier
— Mnester
Jean Chevrier
— Valerio
Germaine Kerjean
— Ismene
Ave Ninchi
— Locusta
Michel Vitold
— Narciso
Giuseppe Varni
— Pallante
Luigi Almirante
— Jeweler
Lamberto Picasso
— astrologer
Gino Saltamerenda
— manager of the brothel
Cesare Barbetti
— Lucio
Achille Majeroni
— Appolonio
Giovanna Galletti
— Christian
Giulio Battiferri
— Marco (uncredited)
Sergio Bergonzelli
— (uncredited)
Maria Bernardini
— (uncredited)
Walter Brandi
— (uncredited)
Livia Cordaro
— (uncredited)
Alma De Río
— (uncredited)
Carlo Duse
— (uncredited)
Pasquale Fasciano
— A thug of the suburra (uncredited)
Armando Furlai
— (uncredited)
Greta Gonda
— Julia (uncredited)
Guglielmo Leoncini
— (uncredited)