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