Comic Book artist
Alice is a good-looking girl Leonard met at the Comic Book Store in the "The Good Guy Fluctuation". She is also a comic book enthusiast, who also draws her own comic books, and takes a liking towards Leonard.
While the gang searches for new comic books, Stuart signals to them that a hot girl entered the store, making them wonder as to why she would enter it. Stuart tries to talk to her, but can't manage it. Alice proceeds to interact with Leonard, as he had a rare comic book she was interested in. She tells him he's cute and writes her phone number on his hand, asking Leonard to call her so they could trade for the comic book, and walks off to look at other merchandise. Stuart and Howard are stumped as to how Leonard managed to "pick her up". Leonard gets his picture put on the wall for this feat.
At Sheldon and Leonard's apartment, Alice shows Leonard her own comic book she drew that is based on her life, and kisses him after he says he's impressed. Her comic book includes a drawing of her having sex with a guy in a Chewbacca costume. He immediately agrees to trade comic books with her (or even trade his car in a fit of passion).
Leonard later goes to her apartment on a date, but he then proceeds to tell her the truth - that he already has a girlfriend. Alice says that she doesn't believe this and that he is just another jerk. Leonard asks if they can just be friends. He explains that his superpower is being a good guy. She proceeds to kick him out.Penny significant competition since she is beautiful and has geeky interests.