Jean is a young man with spiky, gray hair shaved into an undercut style, with the shaved portion being black. He has small, intense brown eyes, and is said to have the same vicious look in them as Eren does. Four years later, he has grown a goatee and his hair is now longer. He has also grown to be rather tall as an adult, standing 190 centimeters. While infiltrating Marley, Jean wears a black Survey Corps uniform with anti-personnel vertical maneuvering equipment.