Lonely Larry
From The Big Bang Theory Wiki
A regular at the comic book store and Captain Sweatpants' partner in the Mystic Warlords of Ka'a tournament (0305). Captain Sweatpants and Lonely Larry were also members of Stuart's bowling team. A fourth member, Albino Bob, couldn't make it for a game, so Stuart invited Wil Wheaton to substitute (0319).
This might be the "Larry at the comic book store" that Leonard planned to sell all his memorabilia to (0114).
