Mr Harrison is a fictional character portrayed by John Burgess in the TV series Agatha Christie's Poirot.
In the first episode they appeared in, titled How Does Your Garden Grow? (season 3), they were 57 years old.
They appear in 1 episodes out of a total of 70 aired
Episodes1
How Does Your Garden Grow?
episode S3.E2 january 1991At a flower show, an older woman in a wheelchair approaches Poirot, gives him an empty seed packet, and asks him to visit her the next day. When Poirot arrives the next day, the woman is dead, murdered with poison.