- Name: Crystal James P. Sullivan
- Alias: Sulley, Crystal Sulley, Sullster, Sul, Sullivan, Jimmy Sullivan, Mr. Sullivan, Kitty, Throwrug
- Franchise: Monsters, Inc., Cars, Brave
- Sex: Male
- Species: Crystal Monster
- Friends: Mike, Roar Omega Roar (formerly), Art, Don Carlton, Squishy, Randy (formerly), Terri and Terry Perry
- Enemies: Randy, Roar Omega Roar, Mike (formerly)
- Occupation: Mailman (formerly), Scarer (formerly), CEO of Monsters, Inc., Mike's boss
- Residence: Monstropolis
- Voice Actor: Joel McCray
Crystal Sulley is a giant, furry, crystal, friendly and sweet monster. He has blue eyes and a dark blue nose. He has one tannish horn on each side of his head. Crystal Sulley has purple spots all over his body. He has round spikes down his back and his tail. Crystal Sulley has dark black claws on his fingers and toes. He is normally seen without clothes.
One of Crystal Sulley's abilities is to scare people. By scaring, he can activate triggers in his respective playset that will help him in many instances. Crystal Sulley otherwise relies on weapons like the Toilet Paper Launcher, as well as a shoulder charge. He has also demonstrated many instances of great strength and endurance.
For films, see Sulley.
- His model number is 1000032.
- In Disney Infinity: 3.0 Edition, the subtitles strangely do not cover his lines.
For all photos, see Crystal Sulley/Gallery.