Jack Crowley

Jack Crowley, formerly known as "The Silver Bullet Alchemist", is a former State Alchemist, stripped of his certification long ago. He had a wife named Elma who died of a mysterious illness, prompting him to attempt human transmutation in an effort to save her. It failed, but gave him the ability to transmute without a circle, and he subsequently began researching the alchemical technique of Golem creation in order to build the perfect new body for his fallen lover's soul. Eventually, repeated human transmutations left his body ruined, and he transferred his own soul into a Golem in order to continue his research.

Jack Crowley is a character exclusive to the Playstation 2 video game, Fullmetal Alchemist 2: Curse of the Crimson Elixir, wherein he plays the role of the main antagonist and final boss.