Gina McKee

Marion

Linus Roache

Tom

Rupert Everett

Patrick

Harry Styles

Younger Tom

Emma Corrin

Younger Marion

David Dawson

Younger Patrick

Kadiff Kirwan

Nigel

Emily John

Pamela

Dora Davis

Sylvie

Joseph Potter

Roy

Richard Dempsey

Librarian

Jae Alexander

Pianist London Café

Freya Mavor

Julia

Sean Jackson

Pedestrian

Maddie Rice

Jackie Stewart

Richard Cant

Rudy

Chris Ma

Pianist Argyle Bar

Lucy Briers

Miss Brown

Jack Bandeira

Leonard

Gareth Kennerley

Policeman in Alleyway

John Sandeman

Policeman in Alleyway

Nicholas Tennant

Gordon Burgess

Charlotte Randle

Mrs. Burgess

Patrick Brennan

Detective Inspector

Brian Martin

Police Constable

James Tucker

Duty Police Officer

Tristan Sturrock

Defense Counsel

Ian Drysdale

Prosecutor

Stefano Braschi

Jonathan

Harry Attwell

Prison Guard

Simon Shorten

Prison Cellmate

Michael Ayala-Cole

Teddy Boy (uncredited)

James Hare

Pier Visitor (uncredited)

Sarah Lockett

Teacher (uncredited)

Róisín Monaghan

Teacher (uncredited)

Andrew Tiernan

Bert (uncredited)