Glaucus, a demobilized centurion returns home to Pompeii to find his father murdered by a gang of black-hooded Christian robbers that terrorizes the city and he decides to investigate the matter while the nearby volcano threatens to erupt.
Steve Reeves
as Glaucus Leto
Christine Kaufmann
as Elena / Ione
Fernando Rey
as Arbaces, High Priest of Isis
Barbara Carroll
as Nydia
Anne-Marie Baumann
as Julia
Mimmo Palmara
as Gallinus, a Praetorian Guard
Guillermo Marín
as Ascanius, Consul of Pompei
Carlo Tamberlani
as Olinto, Christian Leader
Mino Doro
as Consul
María Silva
as Julia's Maid
Jesús Puente
as Roman Senator
Vicky Lagos
as Woman in Red