Gwenda Halliday is a fictional character portrayed by Sophia Myles in the TV series Agatha Christie's Marple.
In the first episode they appeared in, titled Sleeping Murder (season 2), they were 25 years old.
They appear in 1 episodes out of a total of 23 aired
Episodes1
Sleeping Murder
episode S2.E1 february 2006Gwenda Halliday, a wealthy young Englishwoman recently emigrated from India, intuitively buys a seaside manor house, where she re-experiences a murder.