If you're still suffering from Downton Abbey withdrawal symptoms, the upcoming spin-off movie may not be the only remedy.

Shooting started yesterday (April 10) on Belgravia, a new six-part period drama from the writer-creator and production company behind Downton, Julian Fellowes and Carnival Films.

With filming underway, the limited series – which will air on ITV in the U.K. and Epix in the U.S. – has announced a starry cast led by Tamsin Greig (Episodes), Philip Glenister (Life on Mars), Dame Harriet Walter (The Crown), and Alice Eve (Star Trek into Darkness).

They'll be joined by Saskia Reeves, who played DSU Rose Teller in season one of Luther, plus Tara Fitzgerald (Game of Thrones), Ella Purnell (Miss Peregrine’s Home For Peculiar Children), Richard Goulding (The Windsors), James Fleet (Four Weddings and a Funeral), Adam James (Band of Brothers), and Paul Ritter (Harry Potter and the Half-Blood Prince).

The plot synopsis suggests Fellowes' latest show will definitely appeal to Downton fans. It teases: "Belgravia is a story of secrets and scandals amongst the upper echelon of London society in the 19th Century. When the Trenchards accept an invitation to the now legendary ball hosted by the Duchess of Richmond on the fateful eve of the Battle of Waterloo, it sets in motion a series of events that will have consequences for decades to come as secrets unravel behind the porticoed doors of London’s grandest neighborhood."

ITV has also said that "filming will take place at a range of stunning Victorian locations in London and the home counties, Edinburgh, Bath, and Northumberland," which suggests Belgravia will bring those familiar costume drama production values, too.

There's no word yet on when Belgravia will air, but it'll probably be after the Downton Abbey movie, which opens in the U.K. on September 13 and in U.S. theaters on September 20.

Are you excited for Belgravia?