One Big Bang Theory Detail Just Confirmed the New Penny in Stuart Fails to Save the Universe

Seven years after The Big Bang Theory ended, Chuck Lorre’s universe is still expanding: Stuart Fails to Save the Universe sets up a Penny-level replacement with a built-in Big Bang connection as Young Sheldon bows out and Georgie & Mandy’s First Marriage rises.

Seven years after The Big Bang Theory wrapped, we’re finally getting a modern-day return to that universe — and, yes, it already has a smart way to fill the Penny-shaped space without actually bringing Penny back.

Chuck Lorre’s next spinoff is called 'Stuart Fails to Save the Universe.' Unlike Young Sheldon and Georgie & Mandy’s First Marriage, which live in the past, this one jumps back into the present day. No, the Pasadena gang isn’t signing on as series regulars. But the show does have Lauren Lapkus back as Denise, and she’s basically the perfect spiritual stand-in for Penny — in ways that are fun, and in ways the franchise can use to correct some old bad habits.

Quick context (and a little behind-the-scenes history)

When The Big Bang Theory ended in 2019, it wasn’t because viewers bailed. CBS still wanted more. The series was a ratings tank that kept rolling. What stopped it was Jim Parsons deciding to leave, which effectively closed the door on the mothership. Since then, Lorre kept the brand alive with the prequel and the Georgie/Mandy follow-up, and now he’s circling back to the modern era with Stuart in the spotlight.

Why Denise feels like the Penny replacement (on purpose)

Denise shares some very specific DNA with Penny:

• They’re both confident, socially fluent women paired with lovable outsiders — Denise with Stuart, Penny with Leonard.
• They both exist as entry points for the audience into the guys’ world without being defined by the guys’ quirks.
• And here’s a nerdy detail: like Penny, Denise never had an official last name on The Big Bang Theory. Small thing, but it lines up the archetype pretty cleanly.

That setup is handy, because it lets the new show pick up the comic rhythm Big Bang fans know, while giving a different character a chance to lead with her own perspective.

Fixing what Big Bang got wrong with Penny

Let’s be honest: Penny took a beating in the early years of Big Bang. The guys — especially Sheldon — constantly objectified or judged her, and even Mary Cooper piled on when she swung through Pasadena. The creative team has admitted this in hindsight. Things improved later, sure, but the final-season pregnancy twist undercut her agency after seasons of her saying she didn’t want kids. Not a great look.

Stuart Fails to Save the Universe is a chance to course-correct. Denise arrived later in Big Bang’s run, after the comedy had evolved a bit, so she dodged a lot of those outdated gags. Making her a main character from day one means Lorre and his writers can build her out immediately — give her work, friends, and storylines that aren’t just orbiting Stuart. Yes, she’ll be a big part of his arc, but she shouldn’t be his only plot device. Let her be a person, not a prop. That’s the do-over.

So, what’s actually happening with this show?

Stuart Fails to Save the Universe is Lorre’s first modern Big Bang offshoot. No original main-cast members are signed on as series regulars, but it does bring back Lauren Lapkus as Denise. The series is expected to drop sometime this year, and unlike the earlier spinoffs that aired on CBS, this one is set to stream on HBO Max.

Bottom line: familiar world, fresh angle, and a real opportunity to fix one of Big Bang’s oldest problems. If they nail Denise, the whole thing levels up.