Roy (The Itchy & Scratchy & Poochie Show)

Roy is a college aged cool guy who stays at the Simpsons home temporarily.

History
After a while of living with the Simpson family, he leaves to move in with "two sexy ladies."

He took part in the world's tallest human pyramid record attempt.

Non-canon
Roy was a member of the short-lived boy band 5 From Field. However, he couldn't actually sing so Ralph Wiggum, the only band member who could, recorded all of Roy's lines which were later edited to sound like Roy's voice.

When the Planet Express crew were transported to the Simpson's world with memory loss, Leela wandered off towards Springfield Elementary School, where Roy made a pass at her, she then stole his sunglasses and wore them to hide her single eye.

Behind the Laughter

 * He was proposed to appear in one of the alternate realities in the "Treehouse of Horror V" segment "Time and Punishment".
 * He was put into the show as a mocking reference to a Fox executive's suggestion that a new character be created to live with the Simpsons so as to "spice up the show".
 * As well as intentionally resembling Poochie, Roy is also based on from the sitcom .