Miss Collins

In the short story The Adventure of Johnnie Waverly, Miss Collins was the companion and secretary of Ada Waverly. At the time of the kidnap of Johnnie Waverly she had been working for the family for just over a year. Ada described her as an invaluable secretary-companion and also a very efficient housekeeper. When Marcus Waverly dismissed his entire household staff, Miss Collins and the butler Tredwell were the only two who were retained because they could be absolutely trusted.

Portrayals
Miss Collins was played by Sandra Freeman in the film adaptation of the story in episode 3 of Series 1 of ITV's Agatha Christie's Poirot drama series.

In L'étrange enlèvement du petit Bruno, the TV film adaptation of the novel by France Télévisions, the parallel character is Gilles Vanberten.