• 
  Richard Curson Smith

  regizor

• 
  Olivia Williams

  Agatha Christie
• 
  Bonnie Wright

  Young Agatha
• 
  Anna Massey

  Older Agatha
• 
  Tim McMullan

  Pharmacist
• 
  Stephen Boxer

  Psychiatrist
• 
  Olivia Darnley

  Nurse
• 
  Anthony O'Donnell

  Kenward / Hercule Poirot

• 
  Celia Montague

  Agatha's Mother
• 
  Richard Leaf

  Gunman
• 
  Mark Gatiss

  Kenyon

• 
  Jeff Baynes

  imagine
• 
  Leanne Klein

  producător
• 
  Melanie Allen

  design de producţie
• 
  Richard Curson Smith

  scriitor