Gladys Gudgeon was a fan of Gilderoy Lockhart. She wrote fan letters to him every week, and continued to do so when Lockhart was admitted to St Mungo's Hospital for Magical Maladies and Injuries. Lockhart once remarked that he had no idea why.
The name "Gladys" is from the old Welsh name Gwladus, possibly derived from gwlad "country".
- Harry Potter and the Chamber of Secrets (Mentioned only)
- Harry Potter and the Order of the Phoenix (Mentioned only)