Additionally, Toby Regbo, Hannah Onslow, Sophie Thompson and Sophie Winkleman will recur in the eight-part series.
Filming is underway in the UK with premiere set for winter 2023.
Bluemel plays Dr. Stephen Ellerby.

Harriet Slater, Ben Wainwright, Edward Bluemel, Claude Perron and Elaine CassidyDavid Reiss/Michael Shelford/Klara Waldberg/Thomas Hardmeier/Craig Gibson
He is quickly captivated by Clara after meeting her and starts to gain her trust as their lives interweave.
James Trenchard, Fredericks estranged brother.
Onslow portrays Emily Dunn, Claras older sister.

Hannah Onslow, Sophie Thompson, Sophie Winkleman and Toby RegboPip/E. Margolis/Bryan Adams/Iona Wolff
Thompson plays Mrs. Dunn, Emily and Claras devoted mother.
Offering a wealth of business opportunities, Frederick sees a chance to expand into new areas of industry.
Winkleman portrays Duchess of Rochester.
Davison has experienced hard times in her own past and is intent on supporting Clara through her struggles.
Led by Neame, the series reunites Carnivals award-winning creative team behind the original series.
Neame and Marchant will serve as executive producers with Fellowes and Joanna Strevens.
Helen Edmundson serves as showrunner and executive producer.
The series will be directed by John Alexander, Paul Wilmshurst and Marisol Adler.
Colin Wratten (Killing Eve) who produced the original series, will return as producer.
Carnival Films is part of Universal International Studios, a division of Universal Studio Group.
Wainwright is represented by Insight Management & Production.
Bluemel is currently filming a leading role in AmazonsMy Lady Jane, starring Emily Bader.
Hell next be seen in Hulu miniseries Washington Black, set for premiere this year.
Bluemel is repped by Epilogue.
Regbo is known for his leading roles in CWs Reign and The Last Kingdom.
He also starred in Netflixs Medici and his film work includesFantastic Beasts: The Crimes of GrindelwaldandOne Day.
Regbo can most recently be seen in Series Three ofA Discovery of Witchesand Channel 4sChivalry.
Regbo is repped by Independent Talent Group and Authentic Talent and Literary Management.
Onslow recently finished shooting Sally El Hosainis feature filmUnicorn and The Doll Factoryfor Paramount+.
Her other credits includeRidley Roadfor Red Productions, Sister/BBCs inThis Is Going To Hurtand director Sam MendesEmpire of Light.
Shes repped by Gordon and French.
Her television credits includeEverything I Know About Love, Sandylandsand a recurring role in BBCsThe Detectorists.
Thompson is represented by Independent Talent Group.
Perron was most recently seen in the playTartuffeat the Royal Haymarket of London.
Shell next appear in the anticipated SpanishBalenciagaseries biopic produced by Disney+.
Shell also be seen on screen in a French comedy that will be released in Christmas 2023.
Perron is represented by AS Talents.
Shell next be seen on the big screen inWonka, directed by Paul King.
Winkleman is repped by Hamilton Hodell.
Cassidy stars in the new Sebastian Lelio filmThe Wonder, which premiered at Telluride Film Festival in September.
Shes repped by ARG.