In Their Own Words: The 'Big Bang Theory' Cast on the Emotional Ending

Meredith Jacobs

The Big Bang Theory is ending after 12 seasons of laughter, and it's likely fans will be just as emotional watching the series finale as the cast was filming it.

TV Insider spoke with Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, and Mayim Bialik at the series finale red carpet. The actors shared their thoughts on the series ending and which moments were the most emotional.

The series ends Thursday with a one-hour series finale, followed by a retrospective taking a behind-the-scenes look at the series at 9:30/8:30c after the Young Sheldon season finale.

Click through the gallery above to see what the series stars had to say.

The Big Bang Theory, Series Finale, Thursday, May 16, 8/7c, CBS

— Reporting by Jim Halterman