Trevor Eve as Quentin Lester

Eve Myles as Angharad Stannard

Robert Pugh as Mr Davis

Mark Lewis Jones as Daffyd Hughes

Nina Sosanya as Marnie Pope

Guy Henry as Reynolds

Mari Ann Bull as Minnie Hughes

Samuel Morgan-Davies as Dylan Hughes

Nicola Reynolds as Bethan Hughes

Margaret John as Edith Sellwood

Gwenyth Petty as Edna Sellwood

Gwyneth Keyworth as Marie Hughes

Matthew Aubrey as Tom Ellis

James Woolley as National Gallery Director

Aneirin Hughes as Petrol Rep

Tim Treloar as PC Gary Evans

Olwen Medi as Mrs Porty

Jodi Bird as Jade Evans

Melanie Abbott as Reporter

Livia Hughes as London Schoolchild

Sian Boudreaux as Florida Terrible Jones

Frank Cottrell Boyce as Car Boot Dealer

Ruby Lewis as Max Hughes

Ella Lewis as Max Hughes

Anton Valensi as Gary (uncredited)

Matthew Rohman as Passer By (uncredited)