Slow Horses is a spy thriller television series based on the Slough House series of novels by Mick Herron. The series premiered on Apple TV+ on 1 April 2022. The second series, Dead Lions, premiered on 2 December 2022. In June 2022 the series was renewed for a third and fourth series. The third series will premiere on December 1, 2023. It has received critical acclaim.
Premise
Slough House is an administrative purgatory for MI5 service rejects who have bungled their job but have not been sacked. Those consigned there are known as "slow horses". They are expected to endure dull, paper-pushing tasks, along with occasional mental abuse from their miserable boss, Jackson Lamb, who expects them to quit out of boredom or frustration. Life in Slough House is defined by drudgery. Yet the Slow Horses somehow get involved investigating schemes endangering Britain.
Cast and characters
Main
Gary Oldman as Jackson Lamb, the head of Slough House and slovenly, rude, and apparently drunk most of the time. Yet he has a sharp and devious mind, and retains his abilities as an experienced intelligence officer. Jack Lowden as River Cartwright, an up-and-coming MI5 agent shunted aside to Slough House after a very public training-exercise mistake. Kristin Scott Thomas as Diana Taverner, the deputy director-general of MI5 and head of operations and designated "Second Desk".
Slough House
Saskia Reeves as Catherine Standish, the office administrator and a recovering alcoholic. Olivia Cooke as Sidonie "Sid" Baker (season 1), a competent MI5 agent inexplicably assigned to Slough House. Rosalind Eleazar as Louisa Guy, assigned after a tail operation went badly. Christopher Chung as Roddy Ho, an obnoxious computer expert and former hacktivist. Steven Waddington as Jed Moody (series 1), an ex-member of "The Dogs", an MI5 internal affairs and tactical unit. Dustin Demri-Burns as Min Harper (series 1–2), assigned after leaving a top-secret disk on the train. Paul Higgins as Struan Loy (series 1), assigned after sending an inappropriate work email. Aimee-Ffion Edwards as Shirley Dander (series 2), who has anger issues. Kadiff Kirwan as Marcus Longridge (series 2), who has gambling issues.
Others
Notable other characters appearing in more than one series include:
Jonathan Pryce as David Cartwright, River Cartwright's grandfather, a retired MI5 officer. Chris Reilly as Nick Duffy, head of MI5's internal affairs and tactical unit nicknamed "The Dogs". Samuel West as Peter Judd MP, a rising right-wing Conservative politician (series 1) and later Home Secretary (series 2). Sophie Okonedo as Ingrid Tearney (series 1, expected to appear in series 3), the Director-General of MI5, often referred to as "First Desk". Freddie Fox as James "Spider" Webb, an MI5 agent based at Regent's Park headquarters.
Notable other characters appearing in Series 1 – Slow Horses include:
Antonio Aakeel as Hassan Ahmed, Leeds University student kidnapped by the Sons of Albion Paul Hilton as Robert Hobden, a disgraced and struggling journalist with ties to extremist far-right groups. Sam Hazeldine as Moe, the leader of the Sons of Albion, an extremist far-right group, with a secret to hide. Brian Vernel as Curly, a fanatical member of the Sons of Albion. Stephen Walters as Zeppo, a member of the Sons of Albion. David Walmsley as Larry, a member of the Sons of Albion. James Faulkner as Charles Partner (in flashbacks), a former Director-General of MI5 during the Cold War, whom Standish worked for as his PA.
Notable other characters appearing in Series 2 – Dead Lions include: Rade Serbedzija as Nikolai Katinsky, a former KGB agent living in exile in London after defecting at the end of the Cold War. Marek Vašut as Andre Chernitsky, a former KGB operative and assassin who operated during the Cold War. Alec Utgoff as Arkady Pashkin, a fixer for oligarch Ilya Nevsky. Catherine McCormack as Alex Tropper, a local resident in the small village of Upshott, the wife of Duncan and mother of Kelly. Adrian Rawlins as Duncan Tropper, a pub owner in Upshott, the husband of Alex and father of Kelly. Tamsin Topolski as Kelly Tropper, a pub barmaid in Upshott and the daughter of Alex and Duncan. Phil Davis as Richard Bough, aka Dickie Bow, a former MI5 officer, who is disgraced and long since retired.
Notable other characters appearing in Series 3 – Real Tigers include: Sope Dirisu as Sean Donovan, a former head of security at the British embassy in Istanbul Katherine Waterston as Alison Dunn, a MI5 agent who uncovers a dark secret at the heart of the agency