2.Dolores Umbridge（160）

Dolores Umbridge

Dolores Umbridge is a highly disliked character introduced in "Harry Potter and the Order of the Phoenix." Appointed by the Ministry of Magic as the new Defense Against the Dark Arts teacher at Hogwarts, she quickly becomes known for her tyrannical and sadistic nature. With her saccharine-sweet voice and pink, fluffy outfits, Umbridge hides a cruel and authoritarian personality. She imposes strict rules, harsh punishments, and suppresses dissent among students and staff. Umbridge’s oppressive regime symbolizes the dangers of unchecked power and governmental overreach. Her introduction marks a significant shift in the tone of the series, as she embodies the theme of corruption within the magical government. Her actions galvanize the students to form Dumbledore’s Army, a secret group dedicated to resisting her control and learning real defensive magic. Umbridge’s presence at Hogwarts creates an atmosphere of fear and tension, making her one of the series’ most memorable antagonists.