Hanged Man's design reflects that of a mummy with mechanical elements, making it seem less human. Its body is covered in bandages, with half its brain exposed, along with having two right hands as its master does. It has the ability to produce blades from its wrists to attack. It usually crawls along the ground in reflections instead of typical walking. It has no personality outside of serving its master. Hol Horse comments that Magician's Red could be dangerous to Hanged Man, hinting it may be weak to fire. It represents the Tarot Card The Hanged Man.
- Light Manifestation: Hanged Man is a Stand that attacks via reflections. Rather than attacking a person directly, it will appear in a reflective surface and attack their reflection. The person will then bear the results of the attack, seemingly from an invisible assailant. Hanged Man can move through any type of reflecting surface, including human eyes, at the speed of light. Its weakness is that it can only move between reflective surfaces in a linear pattern and is forced to move to the one in front of it if its current location is covered, leaving it vulnerable.
- Wrist Knives: Its two right hands can produce knives from its wrists to attack the enemy. These knives are thinner than a razor blade, easily capable of cutting open a chest or splitting a snake in two. The Stand uses it to attack the opponent's reflection when inside a reflective surface.
- When Polnareff tells how his sister Sherry died, he mentions that J. Geil appeared covered in some sort of protective field. Said field prevented the water from hitting him, making the Stand user completely dry even when directly under the rain. This ability is never mentioned again, leaving it unknown if that was another ability from Hanged Man or not.
- In the anime, J. Geil is briefly seen using this ability, shortly before Hol Horse and Polnareff meet.
- It is possible that Hanged Man is inspired by the 1986 episode of Amazing Stories "Mirror, Mirror". In the episode, the protagonist is chased by a phantom that can only be seen in reflective surfaces, ultimately being caught by seeing the creature through someone's eye.