Aztak

Aztak is an alien bounty hunter who comes from the Fourth Dimension.

Appearance
His face is similar to Humungousaur's in Alien Force and Ultimate Alien, with black eyes and a fang coming out of his mouth. He is gray with bat-like wings with long arms and wears armor.

History
In the Manga, he comes from the fourth dimension in search of Ben Tennyson to purge the Omnitrix, leading Ben to the Fourth Dimension. It is not known how it got into the Main Timeline or how he had knowledge of the Omnitrix.

Appearances

 * Ben 10 Alien Force: Doom Dimension