John Malkovich

as Hercule Poirot

Rupert Grint

as Inspector Crome

Andrew Buchan

as Franklin Clarke

Eamon Farren

as Alexander Bonaparte Cust

Tara Fitzgerald

as Lady Hermione Clarke

Bronwyn James

as Megan Barnard

Freya Mavor

as Thora Grey

Anya Chalotra

as Lily Marbury

Jack Farthing

as Donald Fraser

Shirley Henderson

as Rose Marbury