Preview image for Mariah at the Rosemary Branch story
Preview image for Mariah Rosemary Branch story
Photos: The Rosemary Branch

May 26, 2026

Mariah at the Rosemary Branch

A pub theatre in London, a princess box at the end of the bar, and a place where people line up to meet a sleeping cat.

There are certain places where the atmosphere feels more assembled than designed. Not exactly curated, and not branded either, but gradually accumulated over time through routines, people, and strange little details that nobody planned for.

The Rosemary Branch in London feels like one of those places.

Upstairs, there are rehearsals, costumes, community theatre productions, and actors preparing for the shows. Downstairs, there are regulars at the bar, live piano, old-school Londoners sitting alongside creatives and theatre people, and somewhere in the middle of all of this is a cat named Mariah, who arrived one freezing night last December.

People first noticed her outside during a private party. Smokers kept coming back in, saying there was a cat sitting by the door, trying very hard to get into the building. Somebody let her inside because it was cold, and she seemed to like the idea.

The Rosemary Branch team took her to the vet and tried to find an owner. Mariah, meanwhile, appeared to have already made her decision.

Sometimes a cat decides where she lives

Cats really know how to settle into all kinds of places where people hang out, like bodega cats, bookstore cats, stationmaster cats, embassy cats, and hardware store cats. People online totally love the idea of a cat landing a job without even having to fill out an application.

Part of what makes cats so appealing is that they never really seem like they’re on the job. They look like they wandered into the role accidentally and then stayed because the benefits package seemed reasonable.

Mariah follows a similar career path.

Mariah
Mariah Photo courtesy of the Rosemary Branch

Most mornings start with her helping out the cleaners and spending some time outside, if the weather is nice. She enjoys greeting her neighbors and keeping an eye on the street. She also watches over the neighborhood dogs, although according to the team, the dogs seem significantly more concerned about the arrangement than she is. Later in the day, she settles into her princess box at the end of the bar, where both regulars and newcomers come by to say hello.

When she falls asleep on the bar, people sometimes line up to meet her. "You get a little queue of people waiting to meet her," said Siobhan. Not because she is performing anything, but because she is asleep.

Mariah
Mariah Photo courtesy of the Rosemary Branch

A cat with theatre instincts

Mariah may have started as a pub cat, but theatre life apparently suited her almost immediately.

"With a name like Mariah, she was clearly born for the stage," Siobhan told us.

The team believes she seems more interested in rehearsals than actual performances. She will make an effort to participate if something’s on because she doesn't like being left out.

She is also a fan of the costume department, which houses various fancy jeweled collars and accessories, a preference that really feels less like personality and more like professional consistency.

With a name like Mariah, she was clearly born for the stage.

Mariah
Mariah Photo courtesy of the Rosemary Branch

The sort of place where Mariah makes sense

The current version of the Rosemary Branch has been in operation since 1993 as a women-led community theatre and pub serving the De Beauvoir area.

The crowd downstairs is a fun mix of long-time London locals, theatre lovers, creatives, and the LGBTQ community. Up on the next floor, there are performances and community events happening. Theatre groups are busy rehearsing, and one audience member in a cool calico fur coat happens to have the same first name as the iconic Mariah Carey. In the afternoons, kids from a nearby nursery come by to see her.

"We are a real community-led place here, and Mariah is a part of that," Siobhan said.

Maybe that's why Mariah feels less like a resident pet and more like something the place gradually grew around.

Mariah
Mariah Photo courtesy of the Rosemary Branch

The place's regulars already know how to have an in-house cat celebrity; someone would offer a chair, open a door, bring Dreamies, and come and say hello.

We tend to love animals because they become characters. But maybe places love animals because they become rituals.

We are a real community-led place here, and Mariah is a part of that. She is also the chief mouser on the street, so the chefs like her as well. We think it works so well because she’s the chillest cat.

One small complication

There is one little side effect of becoming a famous resident pub cat. Mariah sometimes chooses to nap beside the taxidermy display in the pub windows, which gives first-time visitors a bit of a fright.

Walking past a pub window and wondering whether the resident cat is part of the decor probably is not how most people expect their evening to begin.

Mariah
Mariah Photo courtesy of the Rosemary Branch

Thanks to Siobhan and everyone at The Rosemary Branch for sharing Mariah's story with us. You can follow The Rosemary Branch on Instagram and check out the latest shows on their website.

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