Gaztak

The Gaztaks are a group of near-human mercenaries from the Milky Way, which were employed by Meglos, the last of the Zolfa-Thurans. He ordered them to abduct a Human being from Earth to serve as Meglos's host so he could assume the appearance of any humanoid he wished, and then to assist Meglos in his plan to steal the mystical Dodecahedron from the Tigellans, the most powerful energy source in the galaxy.