Crainskull is the Omnitrix's DNA sample of a member of an unknown species from an unknown planet.
Crainskull has a slim appearance. His body is white with his head fin being white and outlined with three black stripes. He wears a black and green suit with grey plates on his neck and shoulders. He has a green and white belt, as well as fingerless gloves and boots. His eyes are green with black irises. The Omnitrix symbol is located on his chest.
Crainskull has a very "loyal" personality, tending to help to anyone in need, even if that someone is a villain.
Powers and Abilities
Despite his appearance, Crainskull has enhanced strength and durability, being stronger than an evolved Arachnichimp. He has innate capabilities to use and manipulate different types of technology that he may have never even seen before. He is also capable of easily learning different languages.
Crainskull can be scared by a member of Toepick's species, as well as paralyzed by an electric shock.