KANG & KODOS

Real names: For you to pronounce them correctly, they'd have to pull out your tongue
Occupation: Aliens
Other Aliases: None
Group affiliation: The Rigelians
Base of operations: Rigel IV
First appearance: 7F04, "Treehouse of Horror (Hungry Are The Damned)"
History: Tentacled aliens from the planet Rigel IV, Kang & Kodos have had a number of adventures on Earth, such as when they abducted the Simpson family, took the places of Bill Clinton and Bob Dole in the 1996 presidential election, and fertilized Marge Simpson as part of an alien crossbreeding program. Their Trans-Temporal Reality-Integrator Cannon made it possible for Radioactive Man, Itchy and Scratchy to travel from their home dimensions to Springfield during the epic "When Bongos Collide!" crossover.
Powers: Superior intellect
Weapons and Equipment: Highly advanced alien technology, Pong. (No HBO, that costs more)
Quote: "We offered you paradise. You would have experienced emotions a hundred times greater than what you call love. And a thousand times greater than what you call fun. You would have been treated like gods and lived forever in beauty. But, now, because of your distrustful nature, that can never be."