Anthony Horowitz Creator, Writer Samuel Oatley Jack Archer Actor Jay Benedict Captain John Kieffer Actor Zoe Tapper Susan Davies Actor Philip Jackson Alan Carter Actor Andrew MacLachlan Dr Mark Rogers Actor Peter Jonfield Harold Grayson Actor Corey Johnson Sergeant Jack O'Connor Actor Jonah Lotan Joe Farnetti Actor Keith Barron David Barrett Actor Sam Hazeldine Will Grayson Actor Anthony Howell Sergeant Paul Milner Actor John McArdle Stan Davies Actor Jane Wood Mary Davies Actor Jay Simpson Sergeant Ian Brooke Actor Michael Kitchen Christopher Foyle Actor Honeysuckle Weeks Samantha Stewart Actor Peter Youngblood Hills James Taylor Actor Brian Flaherty Second GI Actor Julian Ovenden Andrew Foyle (voice) Actor Tom Bennett Ben Barrett Actor Jill Green Executive Producer Jim Reeve Executive Producer Gavin Millar Director