Mary is a fictional character portrayed by Alice Hart in the TV series Agatha Christie's Poirot.
They appear in 1 episodes out of a total of 70 aired
Episodes1
The Murder of Roger Ackroyd
episode S7.E1 january 2000Poirot comes out of retirement when his industrialist friend is brutally murdered a short while after a local widow who was suspected of killing her husband commits suicide.