“I’ve spoken to a few different people who were on the show, and I think people were excited about it,” Lapkus continued to E! News. “I think that there was a lot of support there, which was really nice. And you might see some familiar faces in the show, and then you’ll see that they’re equally excited.”

But don’t be spooked if your favorite Big Bang Theory character doesn’t appear exactly as you remember. 

“The awesome thing is that there are alternate versions of these characters,” Sussman added, “and so those actors that people recognize are so good and they’re all so game and it was just a delight and they were all excited to bring something new to these characters.”

Stuart Fails to Save the Universe premieres July 23 at 9:00 p.m. ET on HBO Max. For more shows coming out in 2026, read on… 

— Reporting by Daryn Carp