Police Constable Flagg is a fictional character portrayed by Gerard Horan in the TV series Agatha Christie's Poirot.
In the first episode they appeared in, titled Double Sin (season 2), they were 28 years old.
They appear in 1 episodes out of a total of 70 aired
Episodes1
Double Sin
episode S2.E6 february 1990A young woman is delivering a set of antique Napoleon miniatures to an American collector when they are stolen from her suitcase. Captain Hastings, under Poirot's guidance, sets out to find the thief.