Mark

Jamie Blackley

John

Toby Regbo

Detective Inspector Sarah Clayton

Joanne Froggatt

Rachel

Jaime Winstone

Janet

Liz White

Mark's Dad

Mark Womack

Kelly

Stephanie Leonidas

Zoey

Amy Wren

Mark's Mum

Louise Delamere

Ryan Robins

James Burrows

Henry

Jack Lowden

Nurse

Lenore Thomas

PE Teacher

Anthony Warren

Jack

Scott Chambers

Frank

Jay McDonald

History Teacher

Bridid Zengeni

History Teacher

Brigid Zengeni

Kevin McNeil

Mingus Johnston

John's Step Dad

Quill Roberts

Shaved Head Guy/Kyle

Aiden Smith

Careers Advisor

Neil Stewart

Teacher in Corridor

Charles De'Ath

Porn Star Actor

Kai Taylor

Porn Star Actress

Kerry Louise

Kyle's Daughter

Missy Douglas

Check Out Girl

Maddy Hill

PC Taylor

Johnny Palmiero

Chief Inspector Brian Martin

Roderick Culver

Guard

Raymond Daniel-Davies

Prosecutor

Jonathan Barlow

Mark's Defense Lawyer

Richard Trinder

John's Defense Lawyer

Priyanga Burford

Judge

Vincent Brimble

Girl on Beach

Hannah Douglass

Girl on Beach

Hannah Douglas