Which ‘The Big Bang Theory’ Stars Have — And Haven’t — Appeared in the Spinoff Shows?

Even though The Big Bang Theory is no longer airing, a number of the original cast members have managed to make appearances on other series in the franchise, such as Georgie and Mandy’s First Marriage and Young Sheldon.

Jim Parsons, Kaley Cuoco, Johnny Galecki, Simon Helberg, Kunal Nayyar, Mayim Bialik, and Melissa Rauch played a group of pals who were scientists and their significant others in the popular sitcom, which ran from 2007 to 2019.

 

Later, CBS decided to pick up Young Sheldon as a prequel to The Big Bang Theory. Sheldon (Iain Armitage), a young genius growing up in Texas, was the subject of the follow-up. Fans were engrossed in Sheldon’s romance with Mandy (Emily Osment) after meeting his brother Georgie (Montana Jordan). In 2024, Young Sheldon came to an end, but Georgie & Mandy’s First Marriage saw the franchise continue to grow.

“You don’t need to be familiar with The Big Bang Theory to enjoy Young Sheldon. Additionally, Jordan told Us Weekly in an exclusive interview in October 2024 that “I think you can watch Georgie & Mandy’s First Marriage without watching Young Sheldon.” “This is a fresh beginning.”

 

Since then, Warner Bros. Television has approved a show that takes place in the same universe. The comedy, which includes a number of former Big Bang Theory cast members, would premiere on Warner Bros. Discovery’s streaming service, Max, while the pilot is still in creation.

To find out which Big Bang Theory stars have made a comeback to the show and which haven’t yet, continue scrolling:

Jim Parsons

Parsons won four Emmy Awards for Outstanding Lead Actor in a Comedy Series and the Golden Globe for Best Actor in a Television Series Musical or Comedy after creating the character of Sheldon Cooper on The Big Bang Theory.

Parsons narrated The Big Bang Theory’s first spinoff and went on to become an executive producer on Young Sheldon. In order to demonstrate how the character’s memoir functioned as the setting for Young Sheldon, Parsons and Bialik returned to their respective roles as Sheldon and Amy in the May 2024 series finale.

Galecki, Johnny

 

From 2007 to 2019, Galecki portrayed Leonard on The Big Bang Theory. Although he hasn’t rejoined the franchise yet, he played David in The Conners, which was another notable role he revisited.

 

Cuoco played the beloved character Penny before making an uncredited, voice-only appearance as pool water in the prequel series. She has also starred in Based on a True Story and The Flight Attendant.

Bialik, Mayim

 

After playing love interests on The Big Bang Theory, Bialik and Parsons reunited for a guest appearance on Young Sheldon. For a number of the prequel’s episodes, the actress also provided the voice of Amy.

Helberg, Simon