Suigetsu appears to be indifferent, caring only for a few things around him. He spends a considerable amount of time mocking and/or being beaten up by Karin. Despite showing initial dislike towards his team-mates, Suigetsu has grown fond of them, and was willing to risk his own life to protect them.
Suigetsu is a lean-built young man of average height, straight white hair with a light-blue tint to it in the anime, purple eyes. He wears a purple, sleeveless shirt with blue pants, sandals and a belt around his waist with water bottles attached to it. He also wears another belt strapped to his chest which he uses to carry the Kubikiribōchō.
Having been recruited by Sasuke into his group Taka, Suigetsu is undoubtedly a powerful shinobi. He is highly proficient in wielding the Executioner's Blade. He also possesses the ability to turn himself into liquified form, using his clan's Hydrification Technique. However, due to this, he is weak against Lightning release techniques.