The Skull Knight is a mysterious figure who appears as a towering warrior in skeletal armor astride a ghostly black horse. Despite his ghoulish appearance, he opposes the God Hand and is able to match (and even overwhelm) Zodd's demon form in single combat. His trump card is sticking his sword down his throat in order to coat it with the Behelits he has collected to form a blade that can cut holes through reality's different planes. The Skull Knight aids and saves Gatsu, whom he calls "The Struggler", on a number of occaisons but his motives are unclear.