Timmy voiced by Trey Parker, is a child with orange hair who uses a wheelchair, but he can actually stand and walk somewhat without his wheelchair. His surname has never been revealed, and in the
South Park intro in season four, only the name "Timmy" is shown, followed by an exclamation mark. He usually only says his own name and what sounds like the slurred phrase "livin' a lie". In some episodes, he says some other basic words such as names like "Gobbles", the name of his pet turkey; the word "shit", as seen in "It Hits the Fan"; "Go" in "The Tooth Fairy Tats 2000"; "and the Lords of the Underworld" in "Timmy 2000"; and "Jimmy", as seen in "Up the Down Steroid" and "Cripple Fight". In the episode "4th Grade", right before he thinks that his wheelchair is going to blow up, he actually says, "Please, help me!", and "Bebe!" in Bebe's Boobs Destroy Society. Timmy was originally described as being mentally retarded and is most likely affected by cerebral palsy or aphasia, but over time his character has become described less as such and more often as "disabled". In various episodes (such as "Up the Down Steroid") he appears to be quite cognizant, intelligent, and principled.
