Sarah Lancashire is to star in a new four-part Channel 4 drama.
Provisionally titled The Light, the new series "aims to explore the nexus between blame, revenge and justice, and explores the contentious question of responsibility - social, corporate and personal – that the accident gives rise to."
Set in the fictional Welsh town of Glyngolau and currently filming entirely on location in Wales, The Light follows the grief and anger that follows when an explosion on the construction site claims the lives of many children who have broken into the building site to make mischief.
Sarah Lancashire (Kiri, Happy Valley) plays Polly Bevan the wife of the local politician who championed the regeneration project based on the site and the person to whom the community turns following the disaster.
Joining the cast in the role of Councillor Iwan Bevan, Polly's husband, is Mark Lewis Jones (National Treasure, Keeping Faith) while their rebellious teenage daughter Leona is played by newcomer Jade Croot (Casualty).
Sidse Babett Knudsen (Borgen, Westworld) plays Harriet Paulsen, the executive at Kallbridge Developments which has overseen the project in Glyngolau. Her Executive Assistant at Kallbridge is Tim, played by Nabhaan Rizwan (Informer, 1917).
Joanna Scanlan (No Offence, Getting On) and Eiry Thomas (Keeping Faith, Rillington Place) play Angela Griffiths and Greta respectively, mums who have both lost daughters in the accident.
Further casting includes Genevieve Barr (The Silence, Press) as Debbie Kethin, wife of the construction site's security guard,
Completing the cast are Shaun Parkes (Line of Duty, The Lost Honour of Christopher Jefferies) as Martin Harris and Adrian Scarborough (Gosford Park, Killing Eve) as Philip Walters, two outsiders to the town, and Laura, played by Ruth Madeley (Years and Years, Don’t Take My Baby), who is hired by Kallbridge to serve as Harriet’s counsel.
The Light (w/t) is written by award-winning theatre, film and television screenwriter Jack Thorne and directed by Sandra Goldbacher (Ordeal by Innocence, Anne with an E, The Hour)
The Light (w/t) is to air on Channel 4.