Game of Thrones star Aidan Gillen has been cast in new BBC One thriller Mayday.
The actor, who plays Littlefinger in the HBO series, will appear alongside the likes of Sophie Okonedo, Peter Firth and Lesley Manville in the five-part drama from the writers of Whitechapel.
Mayday focuses on the disappearance of a young girl from an idyllic community, which prompts neighbours and friends to suspect each other of wrongdoing.
Gillen will portray a single father named Everitt, while Okonedo has been cast as a mother-turned-spy. Firth will star as a community leader, with Manville playing his wife.
Ben Stephenson, controller, BBC Drama Commissioning, said: "[Writers] Ben Court and Caroline Ip have crafted a gripping thriller that takes us behind the scenes of a murder and examines the impact a devastating crime has on an ordinary neighbourhood."
Jane Featherstone, chief executive of Mayday producers Kudos Film and Television, said: "Mayday has attracted a brilliant cast and takes an original look at a familiar story.
"There are no police incident rooms, autopsies or crime scene investigations, instead this is about a town facing the reality that the killer is among them, one of them."
Mayday is directed by Black Mirror's Brain Welsh and produced by Chris Fry of Spooks.
