Laura played Emily in TBBT while also playing the role of Jessica in “Bones.” She also played the role of Christine in the short 2017 film “Vitality.”
After “Bones,” the actress’s appearances became few and far between, but she hasn’t gone off the radar completely.
Simon Helberg as Howard Wolowitz – Now
Simon has been starring on the show in a lead role from the very beginning. Other acting jobs he has done include recently acting as Cosme McMoon in the movie "Florence Foster Jenkins" alongside Meryl Streep and Hugh Grant.
He also played the voice of Bian Zao in "Kung Fu Panda: Legends of Awesomeness" from 2011-2016. He makes $750,000 per episode, which is less than what other leads make, however still very admirable.
Laura Spencer as Emily Sweeney – Then
Emily, who works as a dermatologist, met Raj during season 7 on his online dating site. Raj dates Emily and Lucy at the same time. Emily isn’t bothered by it, but Lucy is. Raj likes Emily because of her sadistic sense of humor and fondness for horror films.
Raj and Emily date seriously, with Raj eventually breaking up with her to be with Claire. At one point, Raj dates Emily and Claire at the same time and then breaks up with both girls during season 10.
Kunal Nayyar as Rajesh Koothrappali – Then
Raj, an astrophysicist, has been on the show since season 1, where he played Howard’s BFF. He also used to spend all of his time hanging out in Leonard and Sheldon’s apartment, along with Howard.
During the first half of the series, Raj’s social anxiety was a major barrier to forming relationships with women. After the sixth season, he became more confident and began to date various women. In season 9, he even found himself caught in between two different women.
Kunal Nayyar as Rajesh Koothrappali – Now
Kunal is most known for his role as Raj in TBBT. However, he has done some other acting aside from the show. He starred as Tony in the movie "Dr. Cabbie" and played the voice of Guy Diamond in the DreamWorks animated film "Trolls."
He made $750,000 per episode, which really isn’t bad. He keeps acting, mainly in small roles, but hasn't done anything very big after the show ended.