Take Dolores Umbridge (Imelda Staunton), for example, who first shows up in "Harry Potter and the Order of the Phoenix" as a Ministry of Magic plant who comes to Hogwarts School of Witchcraft and ...

Dolores Umbridge first appears in Harry Potter and the Order of the Phoenix, the fifth book in the series, where we meet her as Senior Undersecretary to the Minister for Magic, before she takes ...