Nigel Havers

as Self - Narrator (voice)

Agatha Christie

as Self - Writer (archive footage)

Samantha Bond

as Self - Actor

Sheila Atim

as Self - Actor

Philip Jackson

as Self - Inspector Japp, ITV's Poirot

Hugh Fraser

as Self - Lt. Hastings, ITV's Poirot

Anthony Horowitz

as Self - Screenwriter and Author

James Prichard

as Self - Agatha Christie's great grandson

Amanda Abbington

as Self - Actor

Damien Timmer

as Self - Executive Producer, Agatha Christie adaptations

Mark Aldridge

as Self - Author

Laura Thompson

as Self - Agatha Christie's Biographer

Sophie Hannah

as Self - Author, Poirot Sequels

John Risdon

as Self - Torquay Historian

Basi Akpabio

as Self - Creative Director, Agatha Christie Ltd

Belinda Smith

as Self - Agatha Christie's home, Greenway