Hellnarak is a fictional character from Ultraman Arc. He is presented as a named entity associated with the series’ monster and sci-fi action elements, serving as one of the threats or notable figures encountered in the story. As with many Ultraman characters, Hellnarak’s role is tied to the conflict between humanity and powerful otherworldly forces, contributing to the series’ tension and spectacle. The character’s name is used as a single-unit name rather than a clearly separated personal and family name.