Big Bang Theory Sequel Confirms Howard’s Replacement — And Fumbles the Reveal

Seven years after The Big Bang Theory wrapped, Chuck Lorre and Bill Prady are going back to Pasadena with a follow-up that is absolutely not the show you think it is. It is set after the original series, it stars Kevin Sussman as Stuart, and it ditches the old playbook in ways that are bold, weird, and kind of fascinating.

What this show changes (and why that matters)

• Timing: Unlike Young Sheldon and Georgie & Mandy's First Marriage, this one actually happens after The Big Bang Theory. First time the franchise has moved the timeline forward.
• Platform: Not on CBS. It is streaming on HBO Max.
• Genre: Less grounded hangout comedy, more multiverse chaos. The trailer leans hard into the sci-fi adventure angle.
• The old gang: As of now, do not expect live-action cameos from Sheldon, Leonard, Howard, or the rest. The connection comes through comic book caricatures of Sheldon, Leonard, and Howard that pop up in Stuart's story. Raj is conspicuously MIA.
• Vibe shift: It breaks a few Big Bang rules on purpose, which makes this a real swing for Lorre and Prady.

The trailer: familiar faces, very unfamiliar realities

HBO Max has started pushing the show, and the first trailer makes the agenda clear: Stuart is pinballing through alternate versions of Pasadena, and familiar characters are getting wild remixes. Lauren Lapkus' Denise reads like a Penny-adjacent anchor in Stuart's orbit. But the headline-grabber is John Ross Bowie's Barry Kripke.

In one standout moment, Kripke shows up with his own muscle and a military vibe, ruling a bizarro pocket of the city as...

"Supreme Leader of South Pasadena."

And then he drops a gross, leering line about Denise that instantly flashes back to The Big Bang Theory's earliest, worst version of Howard: all innuendo, no boundaries. It's a deliberate echo. The joke lands as a gag in the trailer, but the reference is sharp enough to sting if you remember how much the original showrunners (and Simon Helberg himself) later regretted playing Howard that way.

So is the new show backsliding into old bad habits?

That would be the lazy read, and it is probably wrong. Big Bang evolved a lot over 12 seasons. Penny stopped being a punchline and Kaley Cuoco got more agency in how her character was used. Howard grew up, fell hard for Bernadette, and was actually the first one in the group to get married. The series got less cheap and more human as it went along.

Given that Stuart Fails to Save the Universe is explicitly about alternate versions of people, this Kripke looks like a pointed case study: a worse variant who mirrors early-series Howard behavior on purpose. If the original Kripke ends up meeting this nastier doppelganger, that is a clean setup for a character recalibration. Kripke always had a mean streak on the mothership show; letting him confront an uglier version of himself is a clever way to bend him toward something better without pretending his past never happened.

Where the old crew actually fits

If you are holding out hope for a parade of Big Bang cameos, temper expectations. The show's thread to the OGs is through those comic-booky versions of Sheldon, Leonard, and Howard baked into Stuart's story. Raj does not factor into that piece, at least not yet. The upside: this keeps the focus on Stuart (finally) while still acknowledging the universe that made him.

The bottom line

Stuart Fails to Save the Universe is the franchise's first true sequel, it is not playing it safe, and it is having some fun poking at the parts of Big Bang that aged badly. Whether you think that's gutsy or reckless is going to depend on how you felt about those early Howard years.

All 10 episodes drop July 23, 2026 on HBO Max.