Grosvenor (The Manhood of Edward Robinson)

Grosvenor is a non-canonical character who was created for the adaptation of The Manhood of Edward Robinson, the tenth episode of the Thames Television series The Agatha Christie Hour. He is the butler in the house of Lady Noreen Elliot.

There is a butler and a valet in the house in the original story but they were not named. The part of the Grosvenor is played by Frank Duncan.