Kenneth Branagh as Hercule Poirot

Tom Bateman as Bouc

Annette Bening as Euphemia Bouc

Russell Brand as Windlesham

Ali Fazal as Andrew Katchadourian

Dawn French as Bowers

Gal Gadot as Linnet Ridgeway

Armie Hammer as Simon Doyle

Rose Leslie as Louise Bourget

Emma Mackey as Jacqueline de Bellefort

Sophie Okonedo as Salome Otterbourne

Jennifer Saunders as Marie Van Schuyler

Letitia Wright as Rosalie Otterbourne

Michael Rouse as Private Laurin

Alaa Safi as Corporal

Orlando Seale as Captain Rens

Charlie Anson as Sergeant Verhaeren

Danny Hughes as Soldier 1

Sam James Page as Soldier 2

James Schofield as German Soldier 1

George Jaques as German Soldier 2

Jonah Rzeskiewicz as German Soldier 3

Eleanor de Rohan as Nurse

Susannah Fielding as Katherine

Adam Garcia as Syd (Photographer)

Rick Warden as Monsieur Blondin

Noel White as Maître 'D Chez Ma Tente

Edward Riches as Rhythm Guitar (Band)

Dan Ellis as Drums (Band)

Megan Affonso as Piano (Band)

Gwen Reed as Upright Bass (Band)

Jay Phelps as Trumpet (Band)

Lois Au as Saxophone (Band)

Rosie Dwyer as Hotel Staff 2

Niamh Lynch as Female Porter

Nari Blair-Mangat as Hotel Staff 3

Sid Sagar as Concierge

Brenda-Jane Newhouse as Receptionist

Rhiannon Clements as Hotel Administrator

Daniel Cook as Hotel Staff 1

Heider Ali as Spice Market Merchant

Hayat Kamille as Snake Handler

Crispin Letts as Officier Besner

Victor Alli as Marc Yves

Rachel Feeney as Maxine Cardiff

Sarah Eve as Hattie Pyne

Aron Julius as Will Goodwin

Francis Lovehall as Allerton McNaught

Stacy Abalogun as Elinor Glyn

Naveed Khan as Captain Mahmoud

Katie Smale as Berel Genevese

Kemi Awoderu as Alessande Johar