Episode 3 S01 E03

Charlie Cooper (as Kevin Reape) Daniel Betts (as Mike Veale) Joe Absolom (as Christopher Halliwell) Kate Ashfield (as Yvonne Fulcher) Ian Puleston-Davies (as Mick O'Callaghan) Jake Davies (as Liam O'Callaghan) Owain Arthur (as DI Sean Memory) Derek Riddell (as Pete) Peter Wight (as Charlie Edwards) Imelda Staunton (as Karen Edwards) Siobhan Finneran (as Elaine Pickford) Martin Freeman (as Steve Fulcher)

police biography investigation detective swindon murder investigation missing person true crime murder based on true story