Mary cavenndish but it is a better picture

Beatie Edney as Mary Cavendish (Agatha Christie's Poirot)

Mary Cavendish is the wife of John Cavendish, the stepson of Emily Inglethorp.

In The Mysterious Affair at Styles Edit

Mary added a sedative to Emily’s coffee. When Emily died, she thought she was the murderer but later realized Emily was poisoned with strychnine.

In Curtain Edit

In Curtain, it is revealed that John died before Mary and that the latter went to live in Devonshire.

Portrayals Edit

In Agatha Christie's Poirot, Mary Cavendish was portrayed by Beatie Edney.

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