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Young Sherlock cast

80 cast members · 11 main · 2 seasons · 2026–present80 cast members · 2 seasons

Colin Firth was the most popular Young Sherlock cast member on Thursday, at #1,244.Colin Firth leads the cast at #1,244.

Each rank is among everyone we track, by Attention Score, which measures how much attention a person gets online each day.Attention Score measures online attention. Learn more

Main cast

In at least half of the episodes

NameRankAttention Score
  1. Colin Firthas Sir Bucephalus Hodge · 8 of 11 episodes8 eps#1,2443.6
  2. Hero Fiennes Tiffinas Sherlock Holmes · 11 of 11 episodes11 eps#3,1021.9
  3. Natascha McElhoneas Cordelia Holmes · 11 of 11 episodes11 eps#3,5141.7
  4. Joseph Fiennesas Silas Holmes · 8 of 11 episodes8 eps#3,6961.6
  5. Max Ironsas Mycroft Holmes · 11 of 11 episodes11 eps#5,6581.1
  6. Dónal Finnas James Moriarty · 11 of 11 episodes11 eps#6,0471.0
  7. Numan Acaras Esad Kasgarli · 6 of 11 episodes6 eps#10,6410.5
  8. Zine Tsengas Princess Gulun Shou'an · 8 of 11 episodes8 eps#19,8110.2
  9. Holly Cattleas Beatrice Holmes / Edie · 6 of 11 episodes6 eps#21,5180.2
  10. Ravi Aujlaas Professor Kishore Malik · 7 of 11 episodes7 eps
  11. Purdy Hughesas Young Beatrice · 7 of 11 episodes7 eps
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Recurring

In three or more episodes

NameRankAttention Score
  1. Aidan Gillen3 of 11 episodes3 eps#1,7522.9
  2. Indira Varma3 of 11 episodes3 eps#3,5481.7
  3. Olivia Williams3 of 11 episodes3 eps#4,8491.2
  4. Sophie Skelton3 of 11 episodes3 eps#15,4150.3
  5. Paul Antony-Barberas Professor Charles Thompson · 4 of 11 episodes4 eps#18,7360.2
  6. Ian Midlaneas Professor Ambrose Roberts · 4 of 11 episodes4 eps#53,8200.0
  7. Scott Reidas Constable Lestrade · 5 of 11 episodes5 eps
  8. Iris Lias Mei Yi Liu · 5 of 11 episodes5 eps
  9. Stephen Agnewas Nathan Burford · 4 of 11 episodes4 eps
  10. Billy Byersas Young Mycroft · 4 of 11 episodes4 eps
  11. Lucien Guoas Young Sherlock · 4 of 11 episodes4 eps
  12. James Sobol Kellyas Professor Theodore Enright · 4 of 11 episodes4 eps
  13. Katharine Churchas Student · 3 of 11 episodes3 eps
  14. Mark Hawkinsas Asylum Director · 3 of 11 episodes3 eps
  15. Ayaaz Tariqas Junior Porter · 3 of 11 episodes3 eps
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Guest stars

One or two episodes

NameRankAttention Score
  1. Chris Coghillas O'Shea · 1 of 11 episode1 ep#8,1930.7
  2. Adam Jamesas Doctor Maltby · 2 of 11 episodes2 eps#17,6140.2
  3. Rachel Shelleyas Mrs Tilcott · 2 of 11 episodes2 eps#18,4380.2
  4. Nell Williamsas Agatha · 1 of 11 episode1 ep#19,0130.2
  5. David Hargreavesas Ageing Coroner · 1 of 11 episode1 ep#21,7650.2
  6. Angus Wrightas Under Secretary · 2 of 11 episodes2 eps#26,9590.1
  7. Bruno Goueryas Duke D'Ormond · 2 of 11 episodes2 eps#29,1050.1
  8. Indra Ovéas Louise Reine Audu · 1 of 11 episode1 ep#29,3950.1
  9. Scroobius Pipas Fiddle Player · 2 of 11 episodes2 eps#31,1830.1
  10. Simon Delaneyas Detective Fitget · 2 of 11 episodes2 eps#31,8370.1
  11. Simon Paisley Dayas Foreign Secretary · 2 of 11 episodes2 eps#36,0280.0
  12. Nicholas Asburyas Dignitary Ezra Hornsby · 2 of 11 episodes2 eps#48,3740.0
  13. Ed Petrieas Police Desk Officer · 1 of 11 episode1 ep#48,8980.0
  14. Brice Bexteras Folies Bergère Guard · 1 of 11 episode1 ep#61,1920.0
  15. Jeff Bennettas Smudger · 2 of 11 episodes2 eps
  16. Kyle Roweas Edward · 2 of 11 episodes2 eps
  17. William Willoughbyas Frederick · 2 of 11 episodes2 eps
  18. Dale Rapleyas Minister of War · 2 of 11 episodes2 eps
  19. Ian Drysdaleas Hezekiah Crowle · 2 of 11 episodes2 eps
  20. Marion O'Dwyeras Mary Crowle · 2 of 11 episodes2 eps
  21. James Paytonas Lawson Jaggers · 2 of 11 episodes2 eps
  22. Zelda Rosset Colonas Adeline · 2 of 11 episodes2 eps
  23. Jessica Zhouas Emine · 2 of 11 episodes2 eps
  24. Paul Ansdellas Judge · 1 of 11 episode1 ep
  25. Annie Cordonias Gloria · 1 of 11 episode1 ep

The cast, together again

Other titles with the most Young Sherlock cast members

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Cast questions

Who is the most popular Young Sherlock cast member right now?

Colin Firth is currently the most popular Young Sherlock cast member online, with an Attention Score of 3.6 and an overall rank of #1,244 as of November 5, 2026.

How many cast members does Young Sherlock have?

Young Sherlock has 80 credited cast members. 29 of them have an Attention Score on Television Stats today.

Which Young Sherlock cast member has the biggest career high?

Hero Fiennes Tiffin has the biggest career high among the Young Sherlock cast, an Attention Score of 24.0 over their best 30 days.