Kenneth Branagh Hercule Poirot Director, Actor Johnny Depp Edward Ratchett Actor Michelle Pfeiffer Caroline Hubbard Actor Penélope Cruz Pilar Estravados Actor Willem Dafoe Gerhard Hardman Actor Judi Dench Princess Natalia Dragomiroff Actor Josh Gad Hector MacQueen Actor Derek Jacobi Edward Henry Masterman Actor Leslie Odom Jr. Dr. Arbuthnot Actor Daisy Ridley Mary Debenham Actor Marwan Kenzari Pierre Michel Actor Olivia Colman Hildegarde Schmidt Actor Lucy Boynton Countess Elena Andrenyi Actor Manuel García-Rulfo Marquez Actor Sergei Polunin Count Rudolph Andrenyi Actor Tom Bateman Bouc Actor Miranda Raison Sonia Armstrong Actor Michael Green Screenwriter Aditya Sood Executive Producer Matthew Jenkins Executive Producer James Prichard Executive Producer Hilary Strong Executive Producer Mark Gordon Producer Simon Kinberg Producer Judy Hofflund Producer Michael Schaefer Producer Ridley Scott Producer Haris Zambarloukos Cinematographer Mick Audsley Film Editing Patrick Doyle Original Music Jim Clay Production Design Andrew Ackland-Snow Art Director Rebecca Alleway Set Decoration Caroline Smith Set Decoration Alexandra Byrne Costume Design Lucy Bevan Casting