Gorvan

Gorvan is a renegade Tetramand Plumber who abandoned his galactic duty and started selling alien tech to the highest bidder. He is the same species as Ben's alien form, Fourarms. He first appears in Ben 10: Alien Force (Video Game) as a villain. He seems to look pretty obese, but since he's a Tetramand, he still has super strength, and even quite speedy and fit for some reason. He also uses a machine to heal himself while fighting Ben, making him pretty hard to beat. He has yet to appear in the TV series.

History
Ben first meets Gorvan where he was fighting a group of Forever Knights, where he is after a mysterious component. Gorvan enlists Ben, Gwen, and Kevin's help to find the rest of the components. He claims to be a Plumber and even knew Ben's grandfather Max Tennyson. Secretly, he was working for the Highbreed and is on the run from the Plumbers. He tricked the trio into invading a Forever Knight's castle and fighting Vulkanus and his pick-axe aliens for another component. He even turned Kevin into a part-DNAlien hybrid and made him fight Ben. Though Ben was able to defeat Kevin and change him back to normal, Gorvan then fights Ben, and used a rejuvination machine to recrease his stamina. Ben was still able to defeat him though, and kept Gorvan captive with some holding-cells. It is unknown what happened to him after the game was over, though it seemed simple that he was put into Plumbers' captivity.

Trivia

 * Even though he is a video-game only character, he has his own action figure and his collective card shows what he looks like in the TV series.
 * He is the same species as Fourarms.
 * He is a few of some Plumbers who betrayed them.
 * He didn't seem to be aware of the Highbreed's true plan, like the Forever Knights were.
 * Even though the Forever Knights were allies of the Highbreed, Gorvan fought them and used Ben and his friends to attack them and steal one of their components.
 * He looks fat, but he still has super-strength and speed.
 * He is smaller than all the Tetramands. *Ben_10_Alien_Creation_Upchuck_and_Gorvan_.jpg is a alien creation figure pack with Upchuck.