Harry Treadaway as Matthew Ryan

Greg Wise as Jake Ryan

Alex Jennings as Adrian Ballan

Tom Felton as Simon Pryor

Finlay Robertson as Jason Saks

Nikki Amuka-Bird as Shelley Cartwright

Ros Leeming as Amy Tyler

Bronson Webb as Gang Leader

Georgia Groome as Sophie Pryor

Lewis Lemperuer Palmer as Tom Ryan

Jefferson Hall as Edward Bryant

Tyler Anthony as Rebecca Cartwright

James Cook as Anthony

T'Nia Miller as Doctor

Benedict Martin as Father Symmonds

Daniel Tatarsky as Police Sergeant

Ruth D'Silva as Reporter

Paula Bingham as Mrs. Pryor

Glynne Steele as Doctor Cole

Evie Dawnay as Nurse

Oscar Redif as Young boy

David Broughton-Davies as Amy's Father