Agatha Christie’s Greatest Detective Officially Returns With a New 6-Part Series

Image via Britbox Published Oct 5, 2026, 12:00 PM EDT Ryan O'Rourke is a Senior News Writer at Collider with a specific interest in all things adult animation, video game adaptations, and the work of Mike Flanagan. He is also an experienced baseball writer with over six years of articles between multiple outlets, most notably FanSided's CubbiesCrib. Whether it's taking in a baseball game, a new season of Futurama or Castlevania: Nocturne, or playing the latest From Software title, he is always finding ways to show his fandom. When it comes to gaming and anything that takes inspiration from it, he is deeply opinionated on what's going on. Outside of entertainment, he's a graduate of Eureka College with a Bachelor's in Communication where he honed his craft as a writer. Between The IV Leader at Illinois Valley Community College and The Pegasus at Eureka, he spent the majority of his college career publishing articles on everything from politics to campus happenings and, of course, entertainment for the student body. Those principles he learned covering the 2020 election, Palestine, and so much more are brought here to Collider, where he has gleefully written on everything from the SAG-AFTRA and WGA strikes to Nathan Lane baby-birding sewer boys. Sign in to your Collider account This article covers a developing story. Continue to check back with us as we will be adding more information as it becomes available.With filming underway in Liverpool, BritBox has officially revealed more potential suspects filling out Hercule's six-part first set of cases. Edward Bluemel's legendary detective will be surrounded by a stacked slate of actors, including Jessica Alexander, who's coming off a recent starring turn in Ryan Murphy's new FX body horror series The Beauty, which premiered back in January, alongside Black Sails actor Toby Stephens and Rivals star Katherine Parkinson. Also joining them are Honor Swinton Byrne, Omari Douglas, Paul Forman, Arthur Hughes, Ralf Little, River Medway, and Natalie Quarry​​​​​​. The latest additions build on an already extensive cast that features two Game of Thrones universe alumni in Jack Gleeson and Henry Ashton, among many others. Directors Jonny Campbell, Chanya Button, Alrick Riley Writers Benji Walters Cast Edward Bluemel Hercule Poirot