Ruth Bradley
as
Agatha Christie
Ralph Ineson
as
Detective Inspector Dicks
Pippa Haywood
as
Mabel
Samantha Spiro
as
Pamela
Ciarán Hinds
as
Jonjo's Da
Adrian Dunbar
as
Mickybo's Da
Pierce Brosnan
as
Artie Crawford
Clémence Poésy
as
Juliette
John Amos
as
Lincoln Adams
Ian McElhinney
as
Tom Malcolmson