Lucy is a very socially awkward and anxious woman who Raj meets at a singles-only Valentine’s Day party at the comic store.
She and Raj develop a romance in season 6, but Lucy eventually ends the relationship through a text message after Raj tries to convince Lucy to meet his friends. She says that he took things too far, and she doesn’t want to continue in the relationship.
Mark Harelik as Dr. Eric Gablehauser – Then
It probably sucks if your boss dates your mom, and that’s exactly what happened to Sheldon Cooper. Dr. Eric Gablehauser is the boss of the Physics Department at Caltech, and Leonard, Raj, and Sheldon report to him.
While he does his work professionally and is respectful towards his patients, Sheldon doesn’t like him. Dr. Eric Gablehauser has appeared in seasons 1 and 2 of "The Big Bang Theory."
Mark Harelik as Dr. Eric Gablehauser – Now
Like many of the actors and actresses on this list, Mark Harelik dibbled and dabbled in multiple areas of the acting world. Not only is he an actor, but he’s also a playwright.
Mark has had a long and successful career, acting in major movies and television series, including "Jurassic Park III," in the legendary "Seinfeld," in the epic "Breaking Bad," "Prison Break" (intense), "Battle of the Sexes" (hilarious), just to name some. We look forward to seeing him in his next role.
Kate Micucci as Lucy – Now
Kate Micucci has worked as a voice actress in several animated series and films since she appeared in 8 episodes of TBBT. She was the voice of Irma Langinstein in Nickelodeon’s "Teenage Mutant Ninja Turtles" and Velma Dinkley in "Be Cool, Scooby-Doo."
She also was the voice of Webbigail in the Disney cartoon "DuckTales" and Sara Murphy in another Disney show titled "Milo Murphy’s Law." In 2017, the 37-year-old was the voice of Clayface in the "Lego Batman Movie."
April Bowlby as Rebecca – Then
Rebecca is the stunning blonde girlfriend of Caltech employee Bert. She became a personal trainer after she failed to make it as an actress.
The gang is pretty surprised that such a beautiful girl is dating an awkward scientist. Sheldon believes that Rebecca is a golddigger. Bert turns up at the apartment and announces that he broke it off with Rebecca.