Caity Lotz

Ava

Toby Stephens

Vincent McCarthy

Denis Lawson

Thomson

Sam Hazeldine

James

Pooneh Hajimohammadi

Suri

Jonathan Byrne

Tim

Jade Croot

Mary

John-Paul Macleod

Paul Dawson (as John Paul Macleod)

Helen Griffin

Paul Dawson's Mother

Siwan Morris

Lucy

Nicola Reynolds

Joan

Alan Low

Assassin

Sule Rimi

Dr. Giwa-Amu

Joshua Higgott

Assistant (Dr. James)

Giles Thomas

Dr. Henning

Cornelius Garrett

Doctor GP

Sam Ellis

Surgeon

Richard Shackley

Checkpoint Guard

Daniel Llewelyn-Williams

Squadron Commander

Dafydd Emyr

Armed Military Policeman