Sherlock: Season 4
2017 · 3 episodes · ★ 7.6
Series 4
What Season 4 of Sherlock
The fourth series begins with the nation’s favourite detective, the mercurial Sherlock Holmes, back once more on British soil, as Doctor Watson and his wife, Mary, prepare for their biggest ever challenge - becoming parents for the first time.
Season 4 Episodes
4x01 The Six Thatchers
Why is someone destroying images of Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?
Directing: Rachel Talalay · Writing: Mark Gatiss · Starring: Una Stubbs, Rupert Graves, Louise Brealey, Mark Gatiss
4x02 The Lying Detective
Sherlock faces perhaps the most chilling enemy of his long career: the powerful and seemingly unassailable Culverton Smith – a man with a very dark secret indeed.
Directing: Nick Hurran · Writing: Steven Moffat · Starring: Una Stubbs, Rupert Graves, Louise Brealey, Mark Gatiss
4x03 The Final Problem Season Finale
Holmes and Watson travel to Europe to escape Moriarty's vengeance.
Directing: Benjamin Caron · Writing: Steven Moffat, Mark Gatiss · Starring: Una Stubbs, Rupert Graves, Louise Brealey, Mark Gatiss
Season 4 Cast
Martin FreemanJohn Watson3 episodes
Louise BrealeyMolly Hooper3 episodes
Amanda AbbingtonMary Morstan3 episodes
Sian BrookeElizabeth3 episodes
Tanya MoodieEllaEpisode 1
Toby JonesCulverton SmithEpisode 1
Sacha DhawanAjayEpisode 1
Marcia WarrenVivianEpisode 1
Eleanor MatsuuraDI HopkinsEpisode 1
Charles EdwardsDavid WelsboroughEpisode 1
Amanda RootEmma WelsboroughEpisode 1
Rob CallenderCharlie WelsboroughEpisode 1
Georgina RylanceCorneliaEpisode 1
Gina BramhillFaithEpisode 1
Art MalikPrison GovernorEpisode 1
Timothy CarltonMr. HolmesEpisode 1All Seasons
Season 12010 · 3 ep. · 
Season 22012 · 3 ep. · 
Season 32014 · 3 ep. · Where to Watch Season 4 of Sherlock
Subscription
More info and links
Frequently Asked Questions
How many episodes does season 4 of Sherlock have?
Season 4 of Sherlock has 3 episodes.
When did season 4 of Sherlock premiere?
Released January 1, 2017.
Where to watch Sherlock season 4?
In Spain, on Disney Plus.
What is the best episode of Season 4?
According to the audience score on TMDB, episode 4x02, "The Lying Detective", with a 8.4.