HBO Max has officially expanded The Big Bang Theory universe with a surprising new spin-off, Stuart Fails to Save the Universe. The series will follow Kevin Sussman’s character, Stuart Bloom — the eccentric comic book store owner who quietly became a fan favorite across the original show’s twelve-season run.
Unlike previous spin-offs, this new series takes a bold leap into science fiction. The story centers around Stuart unintentionally triggering a multiverse crisis with a device built by Leonard and Sheldon, plunging him into a chaotic journey to restore reality. Described as a comedic twist on the superhero genre, the show blends familiar sitcom beats with high-concept sci-fi — a first for the franchise.
Returning to join Sussman are Lauren Lapkus as Denise, Brian Posehn as Bert Kibbler, and John Ross Bowie as Barry Kripke. In a clever nod to the series’ past, the show will feature alternate versions of classic characters, opening the door for cameos from Big Bang Theory alumni such as Jim Parsons, Kaley Cuoco, and Johnny Galecki.
Behind the scenes, the project reunites creators Chuck Lorre and Bill Prady with Ready Player One screenwriter Zak Penn. While the humor remains grounded in character and dialogue, the creative team has hinted at a visually ambitious production — a sharp contrast to the traditional multi-cam setup of its predecessors.
No official filming date has been announced, but HBO Max confirms production is set to begin later this year in Los Angeles. The series is expected to premiere sometime in 2026.
With Young Sheldon wrapping its successful run and Georgie & Mandy’s First Marriage currently airing, the network appears committed to exploring the many corners of the Big Bang Theory universe. This time, the spotlight shifts to one of its most unlikely heroes.
Though Stuart Bloom was often overlooked in the original series, his solo adventure is shaping up to be anything but quiet. As the franchise heads into multiverse territory, Stuart Fails to Save the Universe could be the most unpredictable — and oddly endearing — chapter yet.
