- María Félix
- Messalina / Messaline (as Maria Felix)
- Georges Marchal
- Caio Silvio / Caius Silvius
- Memo Benassi
- Claudio / Claude
- Delia Scala
- Cinzia
- Erno Crisa
- Timo / Timus
- Carlo Ninchi
- Tauro / Taurus
- Camillo Pilotto
- Ottavio / Octave
- Jean Tissier
- Mnester
- Jean Chevrier
- Valerio / Valerius Asiaticus
- Germaine Kerjean
- Ismene
- Ave Ninchi
- Locusta / Locuste
- Michel Vitold
- Narciso / Narcissus
- Giuseppe Varni
- Pallante
- Luigi Almirante
- Il gioielliere / Le joallier
- Lamberto Picasso
- L'astrologo / L'astrologue
- Gino Saltamerenda
- Il gestore del lupanare / Le tenacier du lupanar
- Cesare Barbetti
- Lucio / Lucius
- Achille Majeroni
- Appolonio / Appolonius (as Achille Majaroni)
- Giovanna Galletti
- La cristiana / La chrétienne
- Giulio Battiferri
- Marco / Marcus (uncredited)
- Sergio Bergonzelli
- (uncredited)
- Maria Bernardini
- (uncredited)
- Walter Brandi
- (uncredited)
- Livia Cordaro
- (uncredited)
- Alma De RÃo
- (uncredited)
- Carlo Duse
- (uncredited)
- Giuliana Farnese
- Arena Spectator
- Pasquale Fasciano
- Un ceffo della suburra / Un malfrat des bas-quartiers (uncredited)
- Armando Furlai
- (uncredited)
- Mario Ghignone
- Conspirator
- Greta Gonda
- Giulia / Julia (uncredited)
- Nino Javert
- (uncredited)
- Guglielmo Leoncini
- (uncredited)
- Elena Leone
- (uncredited)
- Pino Locchi
- (uncredited)
- Lia Murano
- Una ancella / Une servante (uncredited)
- Elsa Pavani
- (uncredited)
- Alberto Plebani
- (uncredited)
- Antonino Randazzo
- (uncredited)
- Ugo Sasso
- (uncredited)
- Roberto Spiombi
- (uncredited)
- Bruno Tocci
- (uncredited)
- Darix Togni
- (uncredited)
- Pietro Tordi
- Un ceffo della suburra / Un malfrat des bas-quartiers (uncredited)
- Amedeo Trilli
- Il guardia del carcere / Le gardien de la prison (uncredited)