From Wikipedia, the free encyclopedia Jason Acuña (born May 16, 1973), also known as Wee-Man, is an American TV host and actor. He is one of the stars of Jackass on MTV and the host of NESN's skateboarding show 54321. Acuña has achondroplasia, a form of dwarfism, and is 4 ft 0.5 in (1.23 m) tall. He is also a professional skateboarder. Description above from the Wikipedia article Jason Acuña,licensed under CC-BY-SA, full list of contributors on Wikipedia.