Iain Glen

as Alexander 'Alec' Wilson

Ruth Wilson

as Alison Wilson

Anupam Kher

as Shabaz Karim

Ian McElhinney

as Father Timothy

Otto Farrant

as Nigel Wilson

Calam Lynch

as Gordon Wilson

Fiona Shaw

as Coleman

Keeley Hawes

as Dorothy Wick

Patrick Kennedy

as Dennis Wilson

Barbara Marten

as Mrs. McKelvie