Wolfman, known in Japanese as Ookami Otoko (オオカミ男), is a recurring monster character in Kaibutsu-kun. He is a wolf-like humanoid who appears as one of Kaibutsu-kun’s companions and fellow monsters, often contributing comic relief and supernatural support. His personality is usually rough, boisterous, and loyal, and he helps reinforce the series’ lighthearted monster-themed adventures. As a classic werewolf figure, he represents the playful, friendly side of traditional horror monsters in the story.