Kang

"We come in peace, for all you know."

- Kang's unlock message - Treehouse of Horror XXIV

"We come in peace, honest!"

- Kang's unlock message - Treehouse of Horror XXIII

Kang was also made available during the Treehouse of Horror XXIV Event and is unlocked after receiving and placing the Victorian UFO.

Simpsons Wiki Description
Kang is a Rigellian from Rigel 7. His sister is Kodos. Together, Kang and Kodos try to take over Earth and are usually seen attacking Springfield, or planning to.

Kang & Kodos have a lot of space weaponry at hand and have their own spaceship. They speak the Rigellian language, which, by coincidence, is identical to English. Although they look identical, Kang has a deeper voice than Kodos.


 * Read the full article here at Simpsons Wiki.

Jobs
Kang has premium job payouts, despite being able to be obtained without paying any donuts. This is because he came with the Victorian UFO as a prize during the Treehouse of Horror XXIV Event.

Trivia

 * During the Christmas Event, an odd glitch can occur when visiting other Springfields, which causes him to appear and attack their Ray Gun (see gallery).
 * Kang is the only character to have all of his jobs outdoors.
 * Kang was the only Treehouse of Horror XXIII character who could complete tasks before his reassignment.
 * Kang was originally a part of the Treehouse of Horror XXIII category, but upon the release of the Treehouse of Horror XXIV Event, he was moved into the Aliens category with Kodos.
 * Kang's unlock message was originally "We come in peace, honest!" but then in Treehouse of Horror XXIV it was changed to "We come in peace, for all you know."