‘Big Bang Theory’ alums Jim Parsons and Mayim Bialik to cameo in ‘Young Sheldon’ finale

Fans of The Big Bang Theory and Young Sheldon are in for a huge treat as CBS has revealed both Jim Parsons and Mayim Bialik will make a guest appearance in the highly anticipated Young Sheldon Finale on May 16, 2024.

ICYDK, Jim and Mayim starred as quirky theoretical physicist Sheldon Cooper and his wife neuroscientist Amy Farrah Fowler, respectively. 

Young Sheldon explores the early years of the titular character, showing a different side of Sheldon compared to what fans have seen in the Big Bang Theory.

The spinoff, starring Ian Armitage, follows Sheldon's childhood and gives viewers a look into the formative experiences that shaped the enigmatic genius.

With its off-net episodes available on streaming services like Netflix, this beloved series has become a streaming powerhouse in addition to being the highest-rated new comedy of the 2017–2018 TV season.

Mayim co-narrated two episodes as Amy in the past, but Jim has narrated the show for all seven seasons as an adult recalling his youth. The duo's appearance in the show marks the first time any of the Big Bang Theory cast members made a cameo in the prequel.

This guesting will also be the two’s first onscreen reunion since the last episode of Big Bang Theory. There are no further specifics available regarding how these adult characters will enter Young Sheldon's plot. 

The series' universe will continue to expand as CBS announced that the world of the Coopers would continue with another spinoff series about Sheldon’s brother Georgie (Montana Jordan) and his new wife Mandy (Emily Osment).

Emily shared the news on her Instagram page, writing, "Stick around y'all, the story continues…"