Voodoo Child resembles a humanoid rat. It is 2 meters in length, including a tail 1 meter in length. The stand has a generally human-like body, with scrawny arms and big, clawed feet. Down the middle of its head and on the sides of its arms are lined jewels. The head is slightly shaped like a rat's, with large protruding hollow eyesockets, and possibly a small lower jaw. Two spikes on the top of its head are akin to ears. Soft looking downy regions cover its chest and pelvic region. Metal-like plating rims its wrists, hands, ankles and feet, with similar triangles on each knee. The stand's tail is long and segmented, with upward protruding spikes on each section.
Lips: Makes lips where it punches. These lips then repeat whatever was said by anyone that was near the punched location, similar to a planted recording device. When voices are played backed, the lips form the appearance of the lips of the speaker who was recorded. If Voodoo Child punches someone, the lips on the target will taunt the opponent's deep psyche, causing emotional damage, and possibly death depending on the target person's mental strength.
The lips operate as a normal mouth would, giving them the ability to bite or pull on objects. The Stand can create as many lips as desired.
Voodoo Child is the first novel-only Stand to have a Battle Cry.
Voodoo Child's ability is very similar to Ermes Costello's Kiss, as the two Stands can form items for attacks (lips & stickers)
The sound it makes when it attacks is 「エリエリエリエリ」 (Erierierieri).