John Hay Director, Screenwriter, Writer Hugh Bonneville Roald Dahl Actor Keeley Hawes Patricia Neal Actor Conleth Hill Marty Ritt Actor Sam Heughan Paul Newman Actor Geoffrey Palmer Geoffrey Fisher Actor Michael Jibson Pete Perkins Actor Grant Crookes Mourner Actor Darcey Ewart Olivia Actor Bodhi Marsan Boy Actor Bobby O'Neill Gus Perkins Actor Isabella Jonsson Tessa Dahl Actor Sam Phillips Young Doctor Actor Sarah Beckett Ward Sister Actor Robbie Jarvis Ambulance driver Actor Jane-Charlotte Jones Senior Ward Sister Actor David Logan Screenwriter, Writer Donall McCusker Producer Nick Quested Producer Adrian Politowski Producer, Executive Producer Martin Metz Producer Justin Johnson Executive Producer David Kennedy Executive Producer Gretchen McGowan Executive Producer Graham Frake Cinematographer Colin Goudie Film Editor, Film Editor Debbie Wiseman Original Music, Music Stephen Michael Shearer Writer