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Cast of The Irregulars

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In Netflix’s The Irregulars, the three leads are McKell David as Spike, Thaddea Graham as Bea, and Jojo Macari as Billy, a gang of misfit teens solving supernatural crimes in Victorian London.

  • Netflix
  • 2021
  • 1 season
  • TV series
  • 12 cast

Main cast

  • SpikeMcKell David1Main
  • BeaThaddea Graham1Main
  • BillyJojo Macari1Main
  • JessieDarci Shaw1Main
  • LeopoldHarrison Osterfield1Main
  • Sherlock HolmesHenry Lloyd-Hughes1Main
  • Dr. John WatsonRoyce Pierreson1Main

Supporting cast

  • Linen ManClarke Peters1Supp
  • Mycroft HolmesJonjo O’Neill1Supp
  • AliceEileen O’Higgins1Supp

Guest & voice

  • Mrs. HudsonRuth Sheen1Guest
  • Inspector LestradeTimothy Innes1Guest

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About this cast

The Irregulars is a 2021 Netflix supernatural crime drama that reimagines Sherlock Holmes’ Baker Street Irregulars as a group of street teens who solve paranormal mysteries for Dr. Watson. The main cast includes McKell David, Thaddea Graham, and Jojo Macari as the core trio, with Henry Lloyd-Hughes as Sherlock Holmes and Royce Pierreson as Dr. Watson.

FAQs

Who plays Spike in The Irregulars?

McKell David plays Spike, the charismatic leader of the Irregulars.

Who plays Bea in The Irregulars?

Thaddea Graham plays Bea, the protective older sister figure.

Who plays Sherlock Holmes in The Irregulars?

Henry Lloyd-Hughes plays Sherlock Holmes, a drug-addled version of the detective.

Is The Irregulars a sequel to Sherlock?

No, it is a standalone series set in the same Victorian London but with supernatural elements and a younger cast.

How many seasons of The Irregulars are there?

Only one season was produced, released in 2021.

Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026

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