Sandra Milo as Vanina Vanini

Laurent Terzieff as Pietro Missirilli

Martine Carol as Contessa Vitelleschi

Paolo Stoppa as Asdrubale Vanini

Isabelle Corey as Clelia

Nerio Bernardi as cardinal Savelli

Leonardo Botta as confessore di Vanina

Olimpia Cavalli as serva dell'albergo

Nando Cicero as Saverio Pontini

Enrico Glori as cardinale

Evar Maran as cardinal Rivarola

Antonio Pierfederici as principe Livio Savelli

Carlo Tamberlani as monsignor Benini

Jean Gruault as castrato

Mimmo Poli as boia