He is portrayed by Spencer Wilding.
The Minotaur is the guardian of the Labyrinth that surrounds Tartarus. He stalks the intruders and plays with their minds before killing them.
When Perseus, Andromeda and Agenor entered the Labyrinth, the Minotaur plays tricks on their minds and gives them hallucination. After Perseus gets separated from the others, he sees an hallucination of his son Helius and follows him in a corridor, however the Minotaur suddenly appears and rams at him. He then comes back and violently attacks Perseus, who defends himself and manages to repel him. The Minotaur rams at him again several times but Perseus dodges, causing the Minotaur to hit a pillar and one of his horns gets stuck. Perseus takes the opportunity to beat the Minotaur repeatedly, which eventually breaks his horn. The Minotaur tries to attack him, but Perseus seizes his broken horn and stabs him multiple times. Before dying, the Minotaur attempts to imitate Helius one last time to deceive Perseus, without success.