The Big Bang Theory has been entertaining audiences since its debut in 2007, introducing viewers to a group of brilliant scientists and their neighbor, Penny. After a decade on the air, here’s a look at some of the cast members then and now.
Sara Rue as Stephanie Barnett – Then
Stephanie was a surgical resident introduced as someone Howard was interested in. However, she ended up dating Leonard instead. Their relationship became serious, but Leonard later realized she had slowly moved in with him. He decided to break up with her over a text message.
Sara Rue as Stephanie Barnett – Now
After her role on The Big Bang Theory, Sara Rue continued working in television. She played Brenda on Rules of Engagement from 2010 to 2013 and had a recurring role on Mom. From 2015 to 2017, she appeared as Karen Delfs on Bones and later joined A Series of Unfortunate Events on Netflix.
Margo Harshman as Alex Jensen – Then
Alex was a doctoral student who worked as Sheldon’s research assistant. Though she had a crush on Leonard, he remained unaware of it for a while. Eventually, she asked him out, but he turned her down, staying loyal to Penny.
Margo Harshman as Alex Jensen – Now
Before The Big Bang Theory, Margo Harshman was known for her role as Tawny Dean on Even Stevens. Since her time on the show, she has continued acting, most notably playing Delilah Fielding on NCIS since 2013.
Mayim Bialik as Amy Farrah Fowler – Then
Amy joined the show in season three after the guys set up a dating profile for Sheldon. As a neurobiologist, she had a unique connection with Sheldon, and their relationship gradually developed over the seasons.
Mayim Bialik as Amy Farrah Fowler – Now
Before joining The Big Bang Theory, Mayim was known for starring in Blossom. She is also the only main cast member with a real Ph.D., similar to her character. Mayim is vocal about her academic background, religious beliefs, and vegan lifestyle.
Kate Micucci as Lucy – Then
Lucy met Raj at a singles event. She struggled with social anxiety, often leaving dates abruptly. Their relationship in season six moved slowly, as Lucy needed more time to adjust to being in a relationship.
Kate Micucci as Lucy – Now
Kate had acting roles before The Big Bang Theory, including appearances on Scrubs and ‘Til Death. She has also done voice work for animated projects and is part of the musical comedy duo Garfunkel and Oates.
Melissa Rauch as Bernadette Wolowitz – Then
Bernadette was introduced in season three when Penny set her up with Howard. Their relationship grew after discovering similarities in their family backgrounds. They eventually got married and started a family.
Melissa Rauch as Bernadette Wolowitz – Now
Melissa began as a stand-up comedian before landing her role on The Big Bang Theory. She has since appeared in TV shows and films like True Blood and The Bronze. She also voiced Francine in Ice Age: Collision Course.
Kaley Cuoco as Penny Hofstadter – Then
Penny has been part of the show since the first episode. She moved to Los Angeles to become an actress while working at The Cheesecake Factory. Despite ups and downs, she and Leonard eventually got married in season nine.
Kaley Cuoco as Penny Hofstadter – Now
Kaley started acting as a teenager and gained recognition for 8 Simple Rules. She is now one of the highest-paid actresses on TV. Outside of acting, she has taken on new projects and continues to be active in the entertainment industry.
Sara Gilbert as Leslie Winkle – Then
Leslie was a physicist who had a brief relationship with Leonard. She often clashed with Sheldon, leading to humorous moments. She also had interactions with other members of the group throughout her appearances.
Sara Gilbert as Leslie Winkle – Now
Sara is widely known for playing Darlene Conner on Roseanne. She reprised this role in the Roseanne revival and its spin-off The Conners. She also co-hosts The Talk and is involved in television production.
