Georgie & Mandy’s First Marriage has cast two more returning Young Sheldon characters. The upcoming Young Sheldon spinoff is set to follow Sheldon Cooper’s (Iain Armitage) older brother Georgie (Montana Jordan) after he moves in with his wife Mandy (Emily Osment), and the young parents attempt to navigate a new marriage and raising a family. The show, which is the second spinoff from The Big Bang Theory, will be part of the Fall 2024 season, continuing the timeline of the prequel show, which will end with its season 7 finale.