Rooney Mara as Una Spencer

Ben Mendelsohn as Ray Brooks

Riz Ahmed as Scott

Ruby Stokes as young Una Spencer

Tara Fitzgerald as Andrea

Natasha Little as Yvonne

Tobias Menzies as Mark

Indira Varma as Sonia

Poppy Corby-Tuech as Poppy

Isobelle Molloy as Holly

Ciarán McMenamin as John

David Shields as Joe

Sophie Stanton as Carol

Sydney Wade as Amy

Gráinne Keenan as Jenny

Emilee Roscamp as Emma

Dan Ball as Nick

Xanthe Gibson as Leah

Jessica Jean Harland Stubbs as Jade

Katie Money as Gemma

Alexander Bracq as Packing Staff

Richard Cunningham as Prosecutor

Madeleine Brolly as Courtroom Clerk

Barney White as Policeman 1

Brett Allen as Policeman 2