The Irregulars: When is the Sherlock Holmes spin-off released on Netflix? Who are the cast? Watch the trailer for the dark fantasy

Netflix’s new take on the Sherlock Holmes and Dr Watson story tells the story of the street kids who helped the detectives solve cases in Victorian London.

By Alex Fletcher Updated: 26 March 2021 - 12.45pm

Netflix's The Irregulars explained by the cast

You’ve probably seen your fair share of Sherlock Holmes movies and TV shows, but you’ve never seen it done like The Irregulars before.

Zooming in on the murky, underbelly of Victorian London, The Irregulars swaps the focus from Holmes and Watson to a gang of troubled teens on the streets.

Lured into solving mysteries for Doctor Watson and his elusive and mysterious business partner, The Irregulars brings the supernatural and dark fantasy to the world of Arthur Conan Doyle.

With a cast of rising stars and newcomers, The Irregulars ticks all the right boxes to become the next big smash hit for Netflix.

Here’s everything you need to know about the new show…

When is The Irregulars released?


Watch The Irregulars on Netflix from March 26.

Writer Tom Bidwell told the BBC: “It’s my dream project and my oldest idea (I’ve been pitching it for 10 years) and I couldn’t be more thrilled to be working on it with the team I made My Mad Fat Diary with at Drama Republic.

“Netflix is incredibly supportive of our vision for the show and it’s allowing us to be very ambitious with the way we’re telling our stories.”

Exclusive - Royce Pierreson Irregulars interview

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Who is in The Irregulars cast?

The lead cast who play the underground gang of ‘Irregulars’ are Thaddea Graham (Us, The Letter for the King) as Bea, Darci Shaw (Judy) as Jessie, McKell David  (Snatch,  Holby City) as Spike and Jojo Macari (Hard Sun, Sex Education) as Billy.

The classic Baker Street pair of Sherlock Holmes and Dr Watson are played by Henry Lloyd-Hughes (Killing Eve) and Royce Pierreson (The Witcher, Line of Duty).

Royce Pierreson as Doctor Watson

Inspector Lestrade will be played by Aidan McArdle (The Fall, Sense8).

The wider cast also includes Olivia Grant (Lark Rise to Candleford), Harrison Osterfield (Catch 22) and Clarke Peters (The Wire)

The Irregulars reviews


The first critics reviews are in for the Netflix series and the first impressions about the fantasy series are good - it's a thumbs-up.

The Radio Times described the show as a mix of "Ripper Street and The X-Files".

The AV Club said:  "The Irregulars serves as a conduit, especially for fans of Sherlock Holmes in all his many forms, into some goosebump-inducing, jump-scare-filled mysteries—intriguing to be sure, but not for the faint of heart."

Empire concluded: "A supernatural spin on Sherlock’s sidekicks that, while far from ground-breaking, is a big step up from The Baker Street Boys."

Meanwhile, The Telegraph reviewer said: "Tom Bidwell's spin-off of Arthur Conan Doyle's London will upset Sherlock purists, but this giddy vision for Netflix is perfectly watchable."

First look at Henry Lloyd-Hughes as Sherlock Holmes


The Irregulars isn't a Sherlock Holmes story like any you have watched or read before and Henry Lloyd-Hughes' Sherlock looks very different to versions we've seen before from Benedict Cumberbatch, Jeremy Brett and Robert Downey Jr.

Pictured outside 221B with a shaven head, earring, ripped coat and mucky face, The Irregulars has an original take on the great detective.


Where have you seen Henry Lloyd-Hughes before? He is best known for playing Roger Davies in Harry Potter and the Goblet of Fire, and also starred in The Inbetweeners as Mark Donovan.

His other film and TV credits include Weekender, Anna Karenina, Parade's End, Indian Summers, The Durrells and season 2 of Killing Eve.

Sherlock Holmes meets The X-Files


The Irregulars writer and creaor Tom Bidwell hopes that Sherlock Holmes fans won't come to the series expecting a traditional Conan Doyle adaptation, because the series doesn't fit in any traditional pigeon hole.

Mixing adventure, horror, crime, romance, fantasy and mystery, it moves away from the Sherlock Holmes canon to explore new ideas.

"Our inspirations were things like The X-Files, where there are really exciting ‘monsters of the week’," said Bidwell.

"We also looked at a lot of horror films: Stephen King was a huge reference point for us. I think Stephen King has that kind of characterfulness, weirdness, darkness but also the story is so important, it’s not just about shocking people - it’s about telling really good stories."

What is the story of The Irregulars?


Netflix has released the following description of the series…

"Set in Victorian London, the series follows a gang of troubled street teens who are manipulated into solving crimes for the sinister Doctor Watson and his mysterious business partner, the elusive Sherlock Holmes. As the crimes take on a horrifying supernatural edge and a dark power emerges, it'll be up to the Irregulars to come together to save not only London but the entire world."

How many episodes of The Irregulars will there be?

Season 1 of The Irregulars will consist of eight episodes.

The show will feature episodic mysteries in the style of Arthur Conan Doyle's Sherlock Holmes stories, but there will also be an over-arching supernatural fantasy running through the series.

Watch this if you like…

Supernatural teen dramas, Sherlock Holmes stories, Netflix dark fantasy series.

Watch The Irregulars on Netflix from March 26.

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