Mummy Boy appears to be short with white bandages wrapped around his entire body, having a single eye on his forehead.
He is a friendly mummy with a good sense of humor.
The Mummy Boy is a friend of the Winged Demon and Corpse Kid who celebrates Halloween with the other citizens of Halloween Town. He can be seen while Jack Skellington is talking about Christmas and also helps the other Halloweentown residents in making the haunted Christmas gifts during the song "Making Christmas". He is later seen with the other citizens of Halloween Town celebrating Jack's return after Jack rescues Santa from Oogie Boogie and helps him save Christmas. He is last seen watching the vampires play hockey during the end of the film.