Two of the UK's most acclaimed actors, Steven Mackintosh (Luther, The Sweeney, Inside Men) and Olivia Williams (Anna Karenina, Hyde Park On Hudson, The Sixth Sense) join forces in a brand new ITV drama series, The Halcyon.The Halcyon tells the story of a bustling and glamorous five star hotel at the centre of London society and a world at war. The eight-part drama series also features Kara Tointon (Mr Selfridge, Sound Of Music Live), Alex Jennings (The Lady In The Van, The Queen), Matt Ryan (Constantine, Arrow), Hermione Corfield (Knights Of The Roundtable: King Arthur, Pride and Prejudice And Zombies) and Mark Benton (Eddie The Eagle, Waterloo Road).The drama, set in 1940, shows London life through the prism of war and the impact it has on families, politics, relationships and work across every social strata with a soundtrack of music from the era. Multi award-winning singer-songwriter Jamie Cullum