Aldo Ralli
Midas
Francesco Romei
Lucius' cousin
Maurice Poli
Ptolomeus
Rodolfo Licari
Gianfranco Parolini
Senator Lucius (as John Francis Littlewords)
Edmondo Tieghi
Aldo Sambrell
Stefania D'Amario
Roman lady (uncredited)
Robert Gligorov
Caligula / Gemellus
Sandra Venturini
Lysia
Laura Colucci
Krisias
Louise Kamsteeg
(as Loïs Kamma)
Maria Ann Levine
Mauro Ferri
Roberto Furlanetto
Cristy Brandao
Alicia Mora
Sydney Lyn