Young Sheldon set up the perfect replacement for George Sr after his death before the beginning of new spinoff Georgie & Mandy's First Wedding.

We watched Georgie grow up on Young Sheldon, but Mandy (who was 29 to Georgie’s 17 when they met, though he said he was 21 and she also lied about her age, telling him she was 25) was only part of the story for the last two seasons of the hit comedy.

Georgie & Mandy’s First Marriage is mere weeks away from its premiere and as the Young Sheldon spinoff prepares for its debut, we’re getting a closer look at some of the newest characters joining the extended Big Bang Theory universe.

As fans of Young Sheldon will recall, Cooper family patriarch George Sr. ( Lance Barber) died in the final episodes of the series, forcing the family to cope with his loss, but viewers haven’t seen that full journey, which will be explored in Georgie’s relationship with his sister Missy ( Raegan Revord ).

But that’s just some of the pure comedy that’s packed into this fun first trailer. As previously reported, Georgie & Mandy’s First Marriage will feature other Young Sheldon stars including Annie Potts, Zoe Perry, and Raegan Revord, although they don’t make appearances in this tease.

Montana Jordan, Emily Osment, and executive producer Steve Holland share what to expect from the "Young Sheldon" spinoff.

Georgie & Mandy's First Marriage executive producer Steve Holland confirms why it's so much more relatable than The Big Bang Theory and Young Sheldon.

As "Georgie & Mandy's First Marriage" gears up for its highly-awaited October debut, its title continues to tease the fate of two beloved characters.

Young Sheldon may have ended, but his brother Georgie and his new wife Mandy are heading into a new life together in the upcoming spin-off.