Marie Marvelle is a fictional character portrayed by Rosalind Bennett in the TV series Agatha Christie's Poirot.
In the first episode they appeared in, titled The Adventure of the Western Star (season 2), they were 23 years old.
They appear in 1 episodes out of a total of 70 aired
Episodes1
The Adventure of the Western Star
episode S2.E9 march 1990After receiving threatening letters, an aristocrat is robbed of her famed diamond in front of Poirot's eyes.