Robert Gligorov

Caligula / Gemellus

Sandra Venturini

Lysia

Aldo Ralli

Midas

Francesco Romei

Lucius' cousin

Maurice Poli

Ptolomeus

Rodolfo Licari

Laura Colucci

Krisias

Gianfranco Parolini

Senator Lucius (as John Francis Littlewords)

Edmondo Tieghi

Louise Kamsteeg

(as Loïs Kamma)

Maria Ann Levine

Aldo Sambrell

Mauro Ferri

Roberto Furlanetto

Cristy Brandao

Alicia Mora

Sydney Lyn

Stefania D'Amario

Roman lady (uncredited)