David Jonsson
Fitzwilliam
Morfydd Clark
Bridget
Penelope Wilton
Miss Pinkerton
Sinead Matthews
Miss Waynflete
Tom Riley
Lord Whitfield
Douglas Henshall
Major Horton
Mathew Baynton
Dr. Thomas
Mark Bonnar
Reverend Humbleby
Nimra Bucha
Mrs Humbleby
Tamzin Outhwaite
Mrs Pierce
Jon Pointing
Rivers
Phoebe Licorish
Rose
Damien Timmer
Executive Producer
James Prichard
Executive Producer
James Gandhi
Executive Producer
Reemah Sakaan
Executive Producer
Karen Lindsay-Stewart
Casting
Emily Jacobs
Casting
Agatha Christie
Novel
Sian Ejiwunmi-Le Berre
Adaptation
Agata Rafalska
Camera Trainee
Erin Currie
First Assistant "A" Camera
Josh Rowe
Second Assistant "A" Camera
Clyde Jones
First Assistant "B" Camera
Chris Kinghorn
Second Assistant "B" Camera