Mrs Allerton is a fictional character portrayed by Barbara Flynn in the TV series Agatha Christie's Poirot.
In the first episode they appeared in, titled Death on the Nile (season 9), they were 55 years old.
They appear in 1 episodes out of a total of 70 aired
Episodes1
Death on the Nile
episode S9.E3 april 2004A wealthy American heiress honeymooning on a Nile cruise ship is stalked by a former friend, whose boyfriend she had stolen before making him her new husband.