The Irregulars: Meet the cast of Netflix’s supernatural Sherlock Holmes series

Meet the talented cast of Netflix’s fantasy series about a gang of troubled teens working for Doctor Watson and Sherlock Holmes.

By Alex Fletcher Published: 26 March 2021 - 4.26pm

Bringing the chills and thrills of The X-Files to the murky world of Sherlock Holmes’ Victorian London, The Irregulars is going to be a must-watch on Netflix.

Created by Tom Bidwell (Watership Down, My Mad Fat Diary), the eight-part series brings a unique supernatural edge to Arthur Conan Doyle’s iconic TV detective and shifts the focus away from Holmes and Watson to an underground gang of street kids.

Fans of hit Netflix teen dramas such as Stranger Things, The Society and Locke and Key will find lots to love in this addictive fantasy.

Hit play above to meet the cast of the Netflix series and keep reading for a preview of the characters they play and where you might have seen the actors before…

Bea – Played by Thaddea Graham

Thaddea Graham as Bea in The Irregulars Netflix

The de facto head of the gang, 17-year-old Bea strives to take care of her younger sister and keep their best friends out of trouble, but she has no idea where their work for Dr John Watson will take them.

Where have you seen her before?

Curfew, Us, The Letter For The King

Jessie – Played by Darci Shaw

Darci Shaw as Jessie in The Irregulars Netflix

More fragile than her sister Bea, 15-year-old Jessie struggles to come to terms with her profound psychic powers, fearing that her gift will alienate her from her friends - if her nightmares don’t kill her first.

Where have you seen her before?

Judy, The Bay

Spike – Played by McKell David

McKell David as Spike in The Irregulars Netflix

While he’d much prefer to just use his natural charm to help his friends and strengthen their bonds, Spike discovers he can also be courageous when any one of them, especially Jessie, is in mortal danger.

Where have you seen him before?

The Gentlemen, iBOY, On the Edge, Marcella, HIM, Hetty Feather

Leo – Played by Harrison Osterfield

Harrison Osterfield as Leo in The Irregulars Netflix

Cloistered in the royal palace because he’s a hemophiliac, 17-year-old Prince Leopold would rather live as the more down-to-earth Leo in London, and not just because he’s in love with Bea.

Where have you seen him before?

Catch-22, One In A Million, Art of Expression

Billy – Played by Jojo Macari 

Jojo Macari as Billy in The Irregulars Netflix

Tough boy Billy has carried a torch for Bea since they met as children in the workhouse, and he really doesn’t like it when fancy newcomer Leo catches her eye instead.

Where have you seen him before?

Sex Education, Harlots, Endeavour, Hard Sun

Sherlock Holmes – Played by Henry Lloyd-Hughes

Henry Lloyd-Hughes as Sherlock Holmes in The Irregulars Netflix

Hardly the legendary, cultured sleuth of 221B Baker Street, this Sherlock learns the hard way that he can’t escape his past choices about his personal responsibilities and relationships.

Where have you seen him before?

Killing Eve, The Inbetweeners, The Pale Horse, The English Game,  Les Miserables, The Durrells

Doctor John Watson - Royce Pierreson

Royce Pierreson as Doctor Watson in The Irregulars Netflix

Though his arrogance and caginess make it easy for Bea to believe he’s capable of the worst, John eventually reveals that he’s also capable of redemption.

Where have you seen him before?

The Witcher, Wanderlust, Judy, Line of Duty, Murdered By My Boyfriend

Exclusive - Royce Pierreson The Irregulars interview

Watch The Irregulars season 1 on Netflix from March 26