Lucario's main role in the anime is his appearance in the eighth Pokémon movie, "Pokémon: Lucario and the Mystery of Mew". In the movie, Lucario is a servant to a nobleman named Sir Aaron in a Renaissance-themed city called Cameron Palace. Lucario thinks of Sir Aaron as both his master and close friend, although after Aaron traps him in a magic staff, Lucario begins questioning any Pokémon-human relationship. The Lucario in the movie, voiced in English by Sean Schemmel, can speak human languages with telepathy. Lucario sacrifices himself to save the Tree of Beginning, though the credits showed him with Sir Aaron in the afterlife, where they happily eat a chocolate bar.