Agatha Christie
Olivia Williams
Old Agatha Christie
Anna Massey
Reggie
James Tucker
Carlo Fisher
Vicki Pepperdine
Max Mallowan
Bertie Carvel
Soldier
Edmund Kingsley
Band Member
Gregory Finnegan
Doctor Edward Armstrong
Toby Stephens
Self (archive footage)
Archie Christie
Raymond Coulthard
Psychatrist
Stephen Boxer
Hercule Poirot
Anthony O'Donnell
Kenward
Kenyon
Mark Gatiss
Gunman
Richard Leaf
Young Agatha Christie
Bonnie Wright
Agatha Christie's Mother
Celia Montague
Music
Andrew Phillips
Director
Richard Curson Smith
Screenplay
Executive Producer
Jacquie Hughes
Leanne Klein
Producer
Colette Flight
Makeup Artist
Sarita Allison
Camera Operator
Jeff Baynes
Editor
Amanda Baxter
Art Direction
James Price