Alessandra Torresani as Claire – Then
Both a scriptwriter and a bartender, Claire works. She runs into Howard and Raj in the comic book shop. She wants Raj to collaborate with her on the writing of a children’s science fiction film.

Claire is not interested in Raj, but he is interested in her. Raj leaves Emily in order to pursue Claire, which makes her even more repulsed. Raj starts dating both Claire and Emily at the same time, eventually breaking up with both women, although at one point, Claire does show interest in Raj.
Alessandra Torresani as Claire – Now
Before landing the role of Claire in TBBT, Torresani was cast in a number of minor roles. The television shows “Husbands,” “Two and a Half Men,” and “American Horror Story” are among her credits.

She appeared as Amber in the 2018 film “Step Sisters,” but she hasn’t done anything else since.
Aarti Mann as Priya Koothrappali – Then
Priya plays the role of younger sister of Raj. We first see her in the fourth season when she is a law student. Raj finally learns that she dates Leonard despite the two of them keeping it a secret.

Under the stipulation that he stop talking to Penny, Priya consents to continue dating Leonard. Priya’s parents are devastated to learn about the connection and compel her to go back home. After a while, the couple’s long-distance relationship becomes tiresome and causes them to lose trust in one another.
Aarti Mann as Priya Koothrappali – Now
Since TBBT, the actress has been featured in a number of TV shows. She performed the roles of Mara Monroe in “Suits,” Dr. DaSilva in the romantic comedy “I’ll See You in My Dreams,” and Agent Laura Kenney in “Scandal.”

She recently appeared as Holly Harner in a “Grey’s Anatomy” episode, and she also acted as Jiah in the drama “Love Sonia.”
Sara Rue as Stephanie Barnett – Then
At Fremont Memorial Hospital, Stephanie holds a renowned position as a physician and surgical resident. She first appears in season 2 when Howard makes an attempt to woo her and gives her the keys to a Mars rover.

Instead, Stephanie meets Leonard, falls in love with him, and the two start dating. After Stephanie transfers all of her possessions into Leonard’s flat, Leonard quickly texts Stephanie to cancel their relationship.
Sara Rue as Stephanie Barnett – Now
Since her time as Stephanie, Sara has been selected for a number of TV programs. In “Malibu Country,” “Rules of Engagement,” and “Mom,” she portrayed Kim Sallinger, Brenda, and Candace, respectively.

In the TV series “A Series of Unfortunate Events,” “American Housewife,” and “B Positive,” she has also had recurring parts.
Margo Harshman as Alex Jensen – Then
Alex works as Sheldon’s assistant while getting her doctorate in physics at Caltech. Sheldon frequently assigns her duties that have nothing to do with their studies.

Leonard declines Alex’s invitation to go on a date since he is committed to Penny, even if Alex wants Leonard.
Margo Harshman as Alex Jensen – Now
Margo’s acting career didn’t begin with TBBT; rather, it began when she was a little child, when she played Tawny Dean, the best friend of Shia LaBeouf’s character, Louis Stevens, in the film “Even Stevens.”

Since TBBT, Margo has taken on a number of lesser roles, including Alison Kidman in “Bones” and Delilah Fielding in “NCIS.”
Brian Patrick Wade as Kurt – Then
Kurt plays Penny’s ex-boyfriend in the play. After Penny relocated from Nebraska to California, the two shared a residence.

Kurt, unlike the males, isn’t particularly intelligent, but he’s a big, strong, and intimidating person. Naturally, Kurt and Leonard are at odds, and Penny takes some time to get over Kurt despite the fact that she thinks he’s a jerk.
Brian Patrick Wade as Kurt – Now
Before starring in TBBT, Brian had a number of roles in both cinema and television. In “The Guardian,” he played Mitch Lyons, and in “Bring It On Again,” he played Fatneck.

In addition, he has supporting roles in the television shows Two and a Half Men, Arrested Development, Teen Wolf, and Agents of Shield. He is currently taking a break from acting to focus on his career as a personal trainer.