Gillian Anderson

as Detective Superintendent Stella Gibson

Jamie Dornan

as Paul Spector

John Lynch

as Jim Burns

Bronagh Waugh

as Sally-Ann Spector

Niamh McGrady

as Danielle Ferrington

Stuart Graham

as Matt Eastwood

Valene Kane

as Rose Stagg

Colin Morgan

as Tom Anderson

Archie Panjabi

as Paula Reed Smith

Aisling Franciosi

as Katie Benedetto