The series premiered on April 16, 2025, on The CW and Discovery+.
Premise
In 1896, Sherlock Holmes becomes embroiled in a malevolent conspiracy involving the Red Thread criminal syndicate, who have kidnapped his closest friends. He joins forces with Amelia Rojas, a young Native American woman whose mother was recently murdered. As they work together to crack the case, Amelia also sets out to learn if the great detective is her long-lost father.
Blu Hunt as Amelia Rojas, a young American from California who arrives in London following her mother's murder to find Sherlock Holmes, her alleged father
Ardal O'Hanlon as Mr. Halligan, Sherlock's butler and coach driver
Fiona Glascott as Lady Violet Somerset, a wealthy socialite and old friend of Sherlock who trains young women in practising proper etiquette in British high society
Aidan McArdle as Chief Inspector Whitlock, the head of Scotland Yard who is well-acquainted with Sherlock
Kojo Kamara[a] as Clarence Halfpenny, the owner of a carriage workshop
Joe Klocek as Daniel "Dan" Moriarty / Michael Wylie, Professor Moriarty's estranged son and a juvenile offender who grew up in Australia
Ivana Miličević as Marjorie Anderson, Clara's mother and Paul's wife
Aisling Kearns as Cassie, the Anderson family's maid
Savonna Spracklin as Lucia Rojas, Amelia's deceased mother and a proficient engineer who appears during flashbacks. Born Little Dove, her ethnicity is revealed in "For Kith and Kin" as "the daughter of a rancher and an Apache, with a Spanish grandfather".
Orén Kinlan as Shaw McPherson, the leader of the Baker Street Irregulars, a gang of street children whom Sherlock hires to find information
Shashi Rami as Bertram "Bertie" Birtwistle, an insurance investigator searching for the American ambassador's missing jewels
Antonio Aakeel as Detective Swann, part of the Scotland Yard scientific division, who is fascinated with the newest technological innovations
Guest
Hyoie O'Grady as Charles "Charlie" Holroyd, the Anderson family's coach driver
Andy Kellegher as Weams, a criminal affiliated with the Red Thread
Michael Ellen Sean as Magott, Weams's partner, who is affiliated with the Red Thread
Caolan Byrne as Dankworth, a prison officer at Newgate Prison loyal to Moriarty
Jack Meade as Lord Withersea, a nobleman working for the Red Thread
Seamus O'Hara as O'Leary, Withersea's Irish bodyguard
Ruairí Heading as Pete Pound, a technician who installs a telephone at 221B Baker Street
Rose O'Neill as Emma, a debutante under Lady Violet's tutulege
Maximilian Henhappel as Herr Bernt, an associate of Dan Moriarty
The series was announced in February 2024, along with the casting of Thewlis, Hunt and Scott.[3][2] The series was created by Brendan Foley, who acts as executive producer alongside showrunnerJames Duff. Micah Wright, Shelly Goldstein, and Foley provided the scripts.[4]
The series consists of eight hour-long episodes, all directed by Bryn Higgins.[2]
Release
Promotional poster
The series premiered on April 16, 2025[8] on The CW in the US and Discovery+ in the UK and Ireland.[9]
Internationally, the series is broadcast by Yle and Amedia in Finland, NRK in Norway, DR in Denmark, SVT in Sweden, Amediateka in Russia, RÚV in Iceland, and SBS in Australia.[2] Federetaion International in July 2025 helped negotiate the sale of the show to Sky Italia in Italy, Bell Media in Canada, RTS in Switzerland, Nova in Greece, Disney Entertainment in the Balkans, Tivibu in Turkey and TV3 Group in the Baltics.[10]
Reception
Critical ratings
The series opened to generally positive reviews. On Rotten Tomatoes, it has an approval rating of 75%.[11]MediaPost stated that "The great David Thewlis mesmerizes in the Role of Sherlock Holmes. This show is a high-quality, well-made adventure and mystery series -- two words that add up to one word: Entertainment."[12]The Hollywood Reporter wrote that "Thewlis is a perfect fit" in an otherwise "modestly amusing" series with possible future potential. It singled out Dougray Scott for his "theatrical physicality" as Professor Moriarty.[13]The A.V. Club thought the show "successfully intertwined mystery with melodrama"[14] while TV Guide also praised Thewlis as "perfectly cast" alongside Blu Hunt as Sherlock's possible daughter, and highlighted supporting performances by Dougray Scott and Fiona Glascott.[15]RogerEbert.com praised Hunt's performance, but criticised the writing of the show.[16]
Ratings
The first season of Sherlock & Daughter became the most-watched season on The CW broadcast network in the US, the second-most watched on The CW streaming app and the fourth-most watched on the Max streaming service following its release.[10]
The following are the viewership ratings for the first season's broadcast on The CW in the US.
Viewership and ratings per episode of Sherlock & Daughter
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