Melvin Voyager
An escaped fugitive and alchemist who claims to be Julia's long-lost brother Ashley. He uses the same form of alchemy Julia practices, which he uses to crystallize water into snow. Spoiler He is revealed later in the film to be an impostor named Atlas, a former guard of the Crichton family, who murdered Julia and the real Ashley's parents and disguised himself as Ashley by grafting his face onto his own. He serves as the film's primary antagonist, using Julia to help create a Philosopher's Stone so he can keep it for himself. He is killed at the film's climax by the real Ashley. (Source: Wikipedia)