Denzel Washington
Role: Macrinus
Pedro Pascal
Role: General Acacius
Connie Nielsen
Role: Lucilla
Joseph Quinn
Role: Emperor Geta
Fred Hechinger
Role: Emperor Caracalla
Derek Jacobi
Role: Gracchus
Peter Mensah
Role: Jugurtha
Matt Lucas
Role: Master of Ceremonies
Alexander Karim
Role: Ravi
Richard McCabe
Role: Quaestor
Tim McInnerny
Role: Senator Thraex
Rory McCann
Role: General Tegula
Riana Duce
Role: Hyacinthia
Alfie Tempest
Role: Young Lucius
Amira Ghazalla
Role: Leta | Lucilla's Servant
Abdelmoula Ait Sidi Lhassan
Role: Boy (Numidia)
Mouaiz El Outmany
Role: Boy (Numidia)
Brahim Assagour
Role: Boy (Numidia)
Alexander Simkin
Role: Centurion (Branding)
Richard Katz
Role: Governor (Baboon Arena)
David Ganly
Role: Master of Ceremonies (Baboon Arena)
Anton Saliba
Role: Praetorian (Lucilla's)
Amal Ayouch
Role: Noble Bedouin Woman
Hadrian Howard
Role: Agedilios
Chidi Ajufo
Role: Gladiator
Christopher Edward Hallaways
Role: Glyceo
Chi Lewis-Parry
Role: Phoebus
Ángel Gómez De La Torre
Role: Gnaeus
Brahim Ait Ben Azzouz
Role: Centurion (Lucius' Arrest)
Maxime Rauf Ruijselaar
Role: Centurion (Ostia)
Sana El Baghdady
Role: Wailing Woman
Nadia El Masnaoui
Role: Wailing Woman
Nisrine Machat
Role: Wailing Woman
Maud Oulhen
Role: Female Concubine
Estelle Courret
Role: Female Concubine
Line Ancel
Role: Female Concubine
Sixtine Gignoux
Role: Female Concubine
Igor Badnjar
Role: Male Concubine
Romi Debart
Role: Male Concubine
Arnaud Préchac
Role: Male Concubine
May Calamawy
Role: Macrinus' Companion (uncredited)
Chris Hallaways
Role: Glyceo (as Christopher Edward Hallaways)