"George and Mandy's First Marriage" just debunked a major Sheldon Cooper hypothesis that "Big Bang Theory" fans have long believed.

The Big Bang Theory may turn out to be one of the last blockbuster sitcoms of its kind, and it left behind one of the most unlikely pop culture icons as well — Sheldon Cooper. The antisocial genius played by Jim Parsons captured fans’ hearts over the course of 12 seasons and nearly 300 episodes

Georgie & Mandy’s First Marriage is welcoming another Young Sheldon star, and it’s not who you may think. TV Insider reports that Lance Barber will be reprising his role as George Sr. despite dying of a heart attack ahead of the series finale of Young Sheldon last year.

Georgie & Mandy's First Marriage continues to bring back Young Sheldon actors for the spinoff series, as Season 1 resumed as part of the 2025 TV schedule. This week's character return was noteworthy, though I think it'll be overshadowed by the huge news about a cameo that's still on the way.

Georgie & Mandy’s First Marriage is conjuring its first spirit. Lance Barber, who for seven seasons starred as Cooper family patriarch George Sr. on CBS’ Young Sheldon, will reprise his role in an upcoming episode of the hit spinoff.

Georgie & Mandy's First Marriage co-creator Steve Holland on bringing back Lance Barber's (Young Sheldon) late George Cooper Sr.

Before Georgie and Mandy's First Marriage, there was The Big Bang Theory and Young Sheldon — but which stars have crossed over from one spinoff to another? The Big Bang Theory, which aired from 2007 to 2019,