Benwolf

Benwolf is (like the name suggests), a wolf-like alien. An alien not coming from the omnitrix but rather absorbed into it, Benwolf was thought to be a south american werewolf. With wolf like powers, he actually has an incredible amount of strength, agility and speed. He also has sharp claws and has a special attack where his mouth splits up into four, allowing him to release a sonic howl.