'Big Bang Theory' Stars Jim Parsons and Mayim Bialik Reunite for 'Young Sheldon' Finale

"The Big Bang Theory" stars Jim Parsons and Mayim Bialik will guest star on the series finale of CBS’ “Young Sheldon,” reuniting as Sheldon Cooper and Amy Farrah Fowler. This marks the first on-camera appearance of their characters since the series finale of "The Big Bang Theory" in 2019. The news comes after CBS announced a new spin-off for next season about Sheldon’s brother Georgie and his new wife Mandy. There are also potential plans for another "Big Bang Theory" spinoff at Max.