Horrorman is a skeletal figure clad in a tattered purple shirt adorned with crossed bones over the chest. His bony frame features prominently protruding kneecaps and a fixed, toothy grin. Though his eerie visage suggests menace, he exudes an affable clumsiness, inadvertently unsettling others through comedic mishaps. Deliberate attempts to frighten often backfire, yet his bumbling antics regularly trigger accidental chaos.

Frequently partnering with Baikinman, he obsessively pursues Dokin-chan’s affection, presenting gathered flowers or snacks that she habitually disregards. The crossed bones on his shirt detach to function as boomerang-like weapons, his primary combat skill.

Media lore offers fragmented backstory: a 2007 short film introduces Hora Horako, a girl resembling him who identifies as his daughter, though her credibility is ambiguous. Unverified speculation ties him to a forgotten past as a shinigami, referencing the series’ mythos of a lifeless Earth revitalized by "stars of life." A 1991 film depicts him mentoring Chibigon, a role absent from the main series.

His speech peppers frequently with "hora"—a Japanese exclamation emphasizing his bids for attention—underscoring his playful, theatrical demeanor. While occasionally colluding in Baikinman’s schemes, his actions lack persistent villainy, often straying from malice toward hapless mischief.