Tinto Brass

Regissör

Malcolm McDowell

Caligula

Teresa Ann Savoy

Drusilla

Helen Mirren

Caesonia

Peter O'Toole

Tiberius

John Steiner

Longinus

Paolo Bonacelli

Chaerea

Leopoldo Trieste

Charicles

Giancarlo Badessi

Claudius

Mirella D'Angelo

Livia

Anneka Di Lorenzo

Messalina

Lori Wagner

Agrippina

Adriana Asti

Ennia

John Gielgud

Nerva

Osiride Pevarello

Giant

Donato Placido

Proculus

Angela La Vorgna

Tortured Slave (okrediterad)

John Stacy

Senator Acesio

Pietro Torrisi

Muscleman on Decapitation Machine/Imperial Brothel Client(okrediterad)

Guido Mannari

Macro

Bruno Brive

Gemellus

Rick Parets

Mnester

Paula Mitchell

Subura Singer