Emma

Emma is a girl who gets together with Dennis Kim at the end of "The Jerusalem Duality".

With Dennis angering Sheldon when the former is smarter than the latter, Leonard, Howard and Raj try to get a Dennis a girl to distract him from his physics intellect and later it works when at the university, Dr. Gablehauser asks Dennis to tell everyone in the cafeteria about his upcoming research, but he says he won't be able to because he's going to the mall with Emma.

At the end, Emma is seen in the park with Dennis and other youngsters, where the two of them are drinking and kissing.

Trivia

 * Emma has no lines.