Shaun Weiss (born August 27, 1979) is an American television and film actor. Weiss started his acting career as Elvis on Pee-wee's Playhouse. He is best known for his portrayal of Greg Goldberg in The Mighty Ducks films. Shaun also has a cult following for his role as Josh in the Disney film Heavyweights. He enjoyed a notable run as peripheral freak "Sean" on the short-lived NBC dramedy Freaks and Geeks as well as some cameo appearances on the American sitcom The King of Queens. Most recently, he is seen in a commercial for Captain Morgan's ("Maxi-Mixers are going fast! How about a demo, Phil?"), Castrol, and ESPN Mobile MVP as Mike 'Big Grunz' Grunski. Weiss also appeared in the movie Drillbit Taylor, making an appearance as the School Bus Driver around the beginning of the film. Shaun can also be seen in a 2008 Verizon Wireless Commercial for the LG Voyager.