Characters that are considered non-canon, either because their very existence is contradicted by a higher canon source or they are derived from cut material that does not fit into the version that was published.
“Miss Granger was a Muggle, second daughter of Mr. and Mrs. Granger and the younger sibling of...Hermione Granger's sister
“Enid Pettigrew was a witch. She may be a relative of Mrs Pettigrew and her son, Peter. The name...Enid Pettigrew
“Isobel MacDougal was a pure-blood witch who began attending Hogwarts School of Witchcraft and...Isobel MacDougal
“This Muggle girl from Liverpool was someone that the late Hogwarts Headmaster Albus Dumbledore...Unidentified Muggle girl from Liverpool
“The mother of Mafalda was a planned character for Harry Potter and the Goblet of Fire. She was a...Mafalda's mother