Philip Martin will direct the new take on Christie's novel which sees David Suchet return as Belgian detective Hercule Poirot.
Suchet said: "It's an honour to have such a wonderful international cast on board for this world famous murder mystery.
"Writer Stewart Harcourt has created an exquisite script. His attention to detail is impeccable."
Other actors hired for the project include Dame Eileen Atkins (Cranford), Hugh Bonneville (Iris, Lost in Austen), Marie-Josée Croze (The Diving Bell and the Butterfly), Denis Ménochet (Inglourious Basterds), David Morrissey (Red Riding, State of Play), Toby Jones (W, Frost/Nixon) and Susanne Lothar (The Reader, Nemesis).
The Poirot films are co-produced by ITV Studios and Agatha Christie Ltd, a Chorion company, and US network WGBH. They are executive produced by Mammoth Screen's Michele Buck and Damien Timmer.