Jarett is a minor antagonist from the TV series, Ben 10: Alien Force and Ben 10: Omniverse who first appeared in the episode, Con of Rath.
Con of Rath
Jarett is the king of his species, the Pantophage. When Ben, Gwen and Kevin came, he was given with a Tiffin, which is an infant of the species, Ledowan.
Jarett ate him, which made Ben who appeared as Rath angry and mentioned that he thought Jarett will take care of him, so Rath went in his mouth to save the Tiffin and escape the mouth by breaking the teeth.
Rath threatened Jarett by looking at him directly to his face, while pulling his ears and said that he will knit a sweater with his intestines.
The Color of Monkey
Jarett appeared again. Argit gave him a box with artificial tiffin, which are actually desserts, which made Jarett angry, since he is not able to have the actual Tiffin, which he wanted. He send his guards to punish Argit.
Jarett appeared as a giant overweight red alien. He has a demon-like appearance and he resembles Trigon from the DC Comics. He appeared to have gold accessories. He also seems to be an elderly based on his grey hair.
Jarett is a cruel type. He wanted to eat the baby alien given to him, which is evil. He also punishes anybody who failed him.