The cast has been announced for Channel 4’s upcoming political comedy-drama Number 10.
Set in one of the most famous addresses in the world, London’s 10 Downing Street, the new series is described as “all of Britain in a house.”
The tagline tells us: “It’s British history under one roof. It’s how we all got into the mess we’re in. It’s also our only hope of getting out of it.”
Creator Steven Moffat is best known for his work on Sherlock, Inside Man, Doctor Who and early-2000s sitcom Coupling.
“For me, it’s all about famous doors! The doors to the TARDIS, the door to 221B Baker Street, and now the most famous door in the world – Number 10,” joked Moffat.
“I’ve been wanting to write about the mad house that runs the madhouse for years, and I’ve never had so much fun doing the research. Other nations are ruled from mighty palaces. Britain is run from a little brick street with a big black door,” he explained.
“If you want to do a workplace comedy drama this one is the boss of them all,” Moffat teased.
Leading the cast are Rafe Spall (Trying) as the Prime Minister, Jenna Coleman (Victoria) as Deputy Chief of Staff at Number 10, and Katherine Kelly (Mr Selfridge) as Chief of Staff.
Coleman previously worked with writer Steven Moffat on three seasons of Doctor Who from 2012-2015.
“I thought it was about time I visited another British institution with Steven Moffat,” the actress said.
Coleman says she’s “very much looking forward to moving into Number 10 with Steven’s cracking scripts.”
Her co-star Rafe Spall added: “Number 10 is a sensational piece of writing, equal to its peerless author, Steven Moffat. I’m delighted to be playing the Prime Minister, in a funny, real and thrilling piece of TV.”
Number 10 began filming in England at the end of 2025 and it’s expected to premiere on Channel 4 in the UK later this year.
Here’s the official synopsis for the show if you want to know more: “There’s a Prime Minister in the attic, a coffee bar in the basement, and a wallpapered labyrinth of romance, crisis and heartbreak in-between.
“Set in the only terrace house in history with mice and a nuclear deterrent, it’s the only knock-through in the world where a hangover can start a war. The government will be fictional and unspecific, but the problems will be real. We’ll never know which party is in power, because once the whole world hits the fan it barely matters.
“This is a show about the building and everyone inside. Not just the Prime Minister upstairs, but the conspiracy theorist who runs the cafe three floors below, the man who repairs the lift that never works, the madly ambitious ‘advisors’ fighting for office space in cupboards. Oh, and of course, the cat.”
