The Depravulak are the most vicious predators in the galaxy. One was seen in the episode "Clark Laser" . They are based on the Predator aliens from the franchise of the same name.
Dark Laser was transporting it to an alien zoo on Carniveron 5. However, it escaped his ship while he was on earth. Dipravulak seem to have an affinity for eating pigs and the meat that comes from them. They also seem to smell like ham due to eating it so much.
They have 8 rows of teeth and have the ability to become invisible. They are expert hunters and feed at night time. They also seem to be really good at stealth, being almost completely silent and only being given away by breathing on the backs of people's necks or by their signature smell.
The Depravulak had orange skin and green hair, with arms much larger and more muscular than its legs. It worse a small loin cloth and different bands on its arms and legs which are also green.
Dark Laser was transporting it to an alien zoo on Carniveron 5. However, it escaped his ship while he was on Earth and ran off. It seemed to be interested in chasing after Cosmo and Wanda especially, but Dark Laser said he was a hunter in general.
At the end of the episode, after Dark Laser realises that it was Mr. Crocker and Foop who almost ran over Flipsie, he gives them a Christmas Ham so the Depravulak can go after them, which it does, managing to get into the back of the car and attacking them.