Full credits

On screen, in billing order

1. 1Adriana Astias Ennia Thrasylla
2. 2Anneka Di Lorenzoas Messalina
3. 3Donato Placido
4. 4Eduardo Bergara Leumann
5. 5Eolo Capritti
6. 6Giancarlo Badessias Claudius
7. 7Guido Mannarias Naevius Sutorius Macro
8. 8Helen Mirrenas Milonia Caesonia
9. 9John Gielgudas Marcus Cocceius Nerva
10. 10John Stacy
11. 11John Steiner
12. 12Leopoldo Trieste
13. 13Malcolm McDowellas Caligula
14. 14Maria Cumani Quasimodo
15. 15Mirella D'Angelo
16. 16Osiride Pevarello
17. 17Paolo Bonacellias Cassius Chaerea
18. 18Patrick Allen
19. 19Peter O'Tooleas Tiberius
20. 20Pino Ammendola
21. 21Rick Paretsas Mnester
22. 22Teresa Ann Savoyas Julia Drusilla

• Bob Guccione
• Franco Rossellini