Dermot is a fictional character portrayed by David Calder in the TV series Agatha Christie's Marple.
In the first episode they appeared in, titled The Blue Geranium (season 5), they were 63 years old.
They appear in 1 episodes out of a total of 23 aired
Episodes1
The Blue Geranium
episode S5.E3 june 2010A superstitious woman dies of apparent fright after her fate is foretold by a medium, but Miss Marple is convinced of foul play.