Mark Strong as John Washington

Taissa Farmiga as Anna Greene

Brian Cox as Sebastian

Saskia Reeves as Michelle Greene

Richard Dillane as Robert Greene

Indira Varma as Judith Morrow

Noah Taylor as Peter Lundgren

Alberto Ammann as Tom Ortega

Jessica Barden as Megan 'Mousey' Scanlon

Clare Calbraith as Jaime Feld

Julio Perillán as Senator Rockford

Rod Hallett as Detective Worner

Sanny van Heteren as Samantha Harris

Antonia Clarke as Susan Merrick

Frida Palsson as Anna Washington

Molly Stein as Daniela Hooper

Simon Cohen as Ralph

Aisha Prigann as Marjorie

Minnie Marx as Mrs. Ortega

Eliza Bateman as 5 Year Old Anna Greene