Dr. Jekyll and Mr. Hyde ジキル博士とハイド氏

Berserker, as Hyde, has an appearance similar to a werewolf with black fur covering his body, a large jaw, sharp fangs, and a beast-like, humanoid form. His eyes glow upon seeing the full moon.

As Jekyll, he is shown to be fancily dressed in a white dress shirt, an olive green vest, and a black and grey jacket draped across his shoulders. He wears a black and white handkerchief with a red jewel around his neck, and leather gloves over his hands.

After Jekyll is corrupted by the Holy Grail, he takes on a darker appearance. Jekyll now wears black clothes and has gold eyes.

Since Hyde has also become the main personality as a result of the corruption. he can only maintain his human form for an hour at most. But when he does become human, Hyde takes on a appearance similar to his Assassin form only now he has fangs and claws where his hands are supposed to be.