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Big Bang Theory Spinoff 'Stuart Fails to Save the Universe' Sets HBO Max Release

The new series starring Stuart, Kripke, Denise, and Bert begins streaming July 23, with co-creator Bill Prady saying viewers don't need prior knowledge of the original show.

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Big Bang Theory Spinoff 'Stuart Fails to Save the Universe' Sets HBO Max Release
The Movie Database (TMDB)
Developing Story
Series Status
Show
Stuart Fails to Save the Universe
Network
HBO Max
Status
ordered
Season
Season 1
Window
July 23, 2026
We realized when we started into this that you didn't have to have knowledge of 'Big Bang Theory,' that the characters introduce themselves, you understand.
Bill Prady, co-creator, to the Akron Beacon Journal

A new spinoff series starring four minor characters from The Big Bang Theory will begin streaming on HBO Max Wednesday, July 23, according to the Akron Beacon Journal.

The show, titled Stuart Fails to Save the Universe, brings comic book store owner Stuart (Kevin Sussman), his girlfriend Denise (Lauren Lapkus), geologist Bert (Brian Posehn), and the amoral Kripke (John Ross Bowie) to the forefront. The series is the fourth entry in the Big Bang timeline.

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What is the new spinoff about?

The 10-episode series follows the four leads as they are forced to save the space-time continuum. They accomplish this by slipping through different timelines each week, aided by a gizmo designed by original series characters Leonard, Sheldon, and Wolowitz. Co-creator Bill Prady described the concept as reminiscent of the 1990s series Sliders, but with a Big Bang Theory twist.

Prady emphasized that the show is designed for newcomers. "We realized when we started into this that you didn't have to have knowledge of 'Big Bang Theory,' that the characters introduce themselves, you understand," he said during a July 6 videoconference.

Who are the main characters?

While all four leads share equal investment, Stuart, as the titular character, carries much of the narrative weight. In the season opener, one of his alternate selves informs him it's his responsibility to save the universe from an apocalyptic hellscape.

Sussman's Stuart was a fan favorite during the original series' 12-season run, receiving significant screen time. The actor originally tested for the role of Leonard and won the role of Wolowitz, but a competing network contract prevented him from taking it, according to reports. He later made the comic book store owner memorable, a role he said was informed by his real-life experience working in a comic book store.

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His relationship with Denise, which began in the original series, gets a new chance in the spinoff. Stuart initially assumes she died in their apocalyptic world, but that proves false. "Stuart has this new relationship, this good relationship, and it was really exciting," Sussman said, "and then, of course, the show stopped, and it’s like that’s so Stuart."

Lauren Lapkus noted the natural chemistry among the cast. "There was some natural chemistry there, which was great. And then, of course, I think the way the scripts unfold, I feel like it just, we come together really well," she said.

The series also expands the roles of Bert and Kripke, giving them unexpected opportunities to develop while staying true to their established characters.

Will other Big Bang Theory characters appear?

The creators confirmed that characters from the original series will appear. "It was really fun finding places for characters outside of our four main characters," Prady said.

The show leans into comedy freed from network television constraints and embraces absurd, hilarious scenarios as the characters pop into ridiculous timelines, with a heaping dose of sci-fi.

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Stuart Fails to Save the Universe begins streaming on HBO Max on July 23.

Frequently Asked Questions

Do I need to watch The Big Bang Theory to understand this spinoff?

No. Co-creator Bill Prady explicitly stated that the new series is designed for viewers who haven't seen the original. The characters introduce themselves within the show, allowing anyone to jump in and grasp the situation.

How many episodes are in the first season?

The first season of Stuart Fails to Save the Universe consists of 10 episodes.

What is the premise of the show?

The four main characters—Stuart, Denise, Bert, and Kripke—must save the space-time continuum. They travel through different timelines each week using a device created by Leonard, Sheldon, and Wolowitz from The Big Bang Theory.

Will any characters from the original Big Bang Theory show appear?

Yes. Co-creator Bill Prady said it was "really fun finding places for characters outside of our four main characters," confirming that other characters from the original series will appear.

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