John Siddaway is a fictional character portrayed by Terrence Hardiman in the TV series Agatha Christie's Poirot.
In the first episode they appeared in, titled The Case of the Missing Will (season 5), they were 55 years old.
They appear in 1 episodes out of a total of 70 aired
Episodes1
The Case of the Missing Will
episode S5.E4 february 1993A terminally ill man asks Poirot to be executor of his new will but is murdered before he can write it, and it is later discovered the old will has been stolen.