Splitter is a short, black and white humanoid alien about four feet tall. He has two spikes on his chestplate and three on the top of his head. His eyes are tilted along the ridge on his face. The Ultimatrix symbol is on his chest.
Splitter is somewhat physically frail, and if the biological mechanism that enables his claws to grip gets cramped up, he won't be able to let go of whatever he's holding on to.