Dolores Umbridge

Professor Dolores Jane Umbridge is a villain from the Harry Potter franchise and serves as one of the main antagonists in Harry Potter and the Order of the Phoenix. She was a Ministry of Magic official and served as Senior Undersecretary to the Minister for Magic under three successive ministers: Cornelius Fudge, Rufus Scrimgeour and Pius Thicknesse. She was designated as Defense Against the Dark Arts teacher at the Hogwarts School of Witchcraft and Wizardry by order of the Ministry and was later promoted to Hogwarts High Inquisitor and eventually Headmistress. This was part of a Ministry effort to keep the school and Harry under control. She later reappears as a judge under Voldemort's supremacist reign in Harry Potter and the Deathly Hallows.