Unidentified five Animagi

These five people were wizards or witches (or both) who were known to be registered Animagi; however their animal forms are unknown. Hermione Granger referred to them by saying that there were only seven registered Animagi in the 20th century. Since the Marauders trio (Prongs, Padfoot and Wormtail) were unregistered, it is at least conceivable that others may have effected this transformation without registering.

Behind the scenes

 * Minerva McGonagall is the only one of the seven Animagi currently to have been named.
 * An unidentified Animagus appears in LEGO Harry Potter: Years 1-4. She took the form of a black cat. As she changed shape in a public location, it is likely she was registered.

Appearances

 * Harry Potter and the Prisoner of Azkaban
 * LEGO Harry Potter: Years 1-4