‘Sherlock’ star Louise Brealey on the one way the show could get a reboot

Is a reboot afoot?

Fans of the BBC’s “Sherlock,” which propelled Benedict Cumberbatch, as the titular detective, into the zeitgeist both in and out of the U.K., might still be seeking one last adventure for Holmes and Watson (Martin Freeman). But for Louise Brealey, who starred as pathologist Molly Hooper — whose loyalty to Sherlock was matched only by her unrequited love for him — getting the band back together again seems a tall order.

“We lost Una Stubbs [who played Mrs. Hudson]. And so in some regards, it’s sort of unimaginable without her because of course it’s Sherlock and Watson, but also, it’s us lot,” Brealey, 43, told the Daily News while promoting her new film, “Brian and Charles,” out Friday.

That said, if the show — created by Steven Moffat and Mark Gatiss, who co-stars as Sherlock’s brother, Mycroft — were to return, it’d likely be “a one-off.”

“And I think it would have to be brilliant to get Ben and Martin to do it,” Brealey said. “Then it would be awesome to revisit it.”

It wouldn’t be the first time the series ventured into such territory.

Between the second and third seasons, fans got a mini-episode just in time for Christmas, and a Victorian-era special between the third and fourth seasons. Though the series effectively ended with that fourth season in January 2017, Moffat at the time said that the future of the series was really dependent on Cumberbatch, 45, and Freeman, 50 — both of whom won Emmys for their roles in the show.

Both have joined the Marvel Cinematic Universe. Freeman has since starred in the miniseries “A Confession” as well FX’s “Breeders,” which he co-created. Cumberbatch’s post-”Sherlock” career extends far beyond his Doctor Strange cape, with the actor scoring his second Oscar nomination earlier this year for Jane Campion’s “The Power of the Dog.”

“You know as well as I do that when we finished it, I don’t think we quite thought it was finished,” said Brealey.

“So there is a slight sense for me of unfinished business. ... I think if they got the right script and the right director, they might be able to lure Ben and Martin out of Hollywood. You never know.”

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