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 Fox Sports Net's skateboarding show 54321. Acuña has achondroplasia, a form of dwarfism, and is 4 ft ½ in (123 cm) tall. He is also a professional skateboarder.