Wil Wheaton

Wil Wheaton (playing himself) first appeared in The Creepy Candy Coating Corollary as he enters a card game tournament (Mystic Warlords of Ka'ah) with Stuart and playing against Sheldon and Raj. Sheldon only joined because he wanted to confront him over an incident of the past: a young 15 yr. old Sheldon was devastated when Wheaton (Wesley Crusher in Star Trek: The Next Generation) failed to show up at the '95 Dixie Trek convention in Jackson, Mississippi around 1995. In the final match, Sheldon is about to defeat his hated rival, but Wheaton tricks him once more by telling Sheldon his grandmother had died shortly before the convention and prevails. It is revealed that this was scam to win and upon losing, Sheldon tenses up and screams angrily, "WHEATON!". Wil Wheaton reappears in the episode The Wheaton Recurrence, where he breaks up Leonard and Penny's relationship in order to win a bowling competition against the main characters, causing Sheldon, Leonard, Raj and Howard to dress as superheroines. Sheldon names his team 'The Wesley Crushers', implying they will crush Wesley, who was Wheaton's character in Star Trek, however most interpret it as Sheldon naming the team after Wesley Crusher because they are fans of him.

Wheaton appears again on The 21-Second Excitation (s04e08), Sheldon and his friends form in a big line to enter the cinema, then Wheaton comes with a Lonely Larry and Captain Sweatpants and enters the cinema without doing the line because of his celebrity status, causing Sheldon and friends to not be able to enter the movies. Sheldon then steals the movie from the projection booth and the gang gets chased by him and the movie seers. Its was Leslie Winkle who was nemesis of Sheldon before Wil Wheaton.