Lance Barber is reprising his Young Sheldon role as George Cooper Sr. on Georgie & Mandy's First Marriage, but don't expect him to pop up as a ghost.

The new "Young Sheldon" spin-off is bringing back a major character, but who is it, when will it happen, and how? We take a look at all the details.

Warning! The following contains spoilers for the Georgie & Mandy's First Marriage episode "Diet Crap." Stream it with a Paramount+ subscription and read at your own risk! Georgie & Mandy's First Marriage continues to bring back Young Sheldon actors for the spinoff series,