HBO Max is moving full steam ahead with its first new original under the rebranded banner, and it is none other than Stuart Fails to Save the Universe. After years of waiting, Warner Bros. Discovery has finally turned the idea into an actual series, handing the green light to The Big Bang Theory spin-off that centers on the unlucky comic book shop owner, Stuart Bloom. According to Collider, Kevin Sussman will return to the role, stepping into the spotlight for the first time since his supporting run on the original show.
The new ‘BIG BANG THEORY’ spin-off series ‘STUART FAILS TO SAVE THE UNIVERSE’ is moving forward.
The series follows Stuart who must restore reality after he breaks Sheldon and Leonard’s new device and causes a Multiversal Armageddon. pic.twitter.com/i1ZdNIaBo6
— DiscussingFilm (@DiscussingFilm) July 9, 2025
The Big Bang Theory Spin-Off Takes A Sci-Fi Twist
The story heads into stranger territory than anything the franchise has done before. The plot, set in the future, follows Stuart breaking a powerful device that Sheldon and Leonard had been working on back in the final moments of The Big Bang Theory. That mistake causes a multiverse-wide disaster, pulling Stuart into a reality-hopping mess he’s somehow expected to fix.
He’s joined by Denise, his girlfriend; Bert, the rock-loving geologist; and Kripke, Sheldon’s old rival. Together, they’ll face off against alternate versions of familiar characters, bringing back old faces with a twist. However, this spin-off does not follow the same path as Young Sheldon or Georgie & Mandy’s First Marriage. It leans heavily into science fiction, combining multiverse theory, CGI, and offbeat comedy.
HBO Max has greenlit ‘THE BIG BANG THEORY’ spinoff ‘STUART FAILS TO SAVE THE UNIVERSE’ starring Kevin Sussman, Lauren Lapkus, Brian Posehn, & John Ross Bowie.
The show is set in the future with Stuart tasked with fixing reality after he causes a multiverse armageddon. pic.twitter.com/Eb2D5v0H1s
— Agents of Fandom (@AgentsFandom) July 9, 2025
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Familiar Faces To Return To New The Big Bang Theory Spin-Off
Chuck Lorre, Bill Prady, and Zak Penn, all involved with the original show, are back as executive producers, aiming to build something wilder than the sitcoms that came before. The confirmed cast includes Sussman, Lauren Lapkus as Denise, Brian Posehn as Bert, and John Ross Bowie as Kripke.
While there’s no official word on Sheldon or Leonard popping in, the premise leaves the door wide open. The series has already completed its first table read, setting things in motion after more than a year of concept work. The production is still early, but Stuart Fails to Save the Universe is very much alive, and it’s aiming to be something Big Bang fans haven’t quite seen before.
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