Timothy "Timmy" Burch is a male fourth-grader at South Park Elementary. He first appears in the Season Four episode, "The Tooth Fairy Tats 2000", and is voiced by Trey Parker. He is handicapped, uses a wheelchair to get around, and has a limited vocabulary consisting only of his own name and a small handful of other words and phrases, he is rarely seen doing this, however. After a decade of being known simply as "Timmy", his full name was revealed to be "Timmy Burch" in the episode "T.M.I."…