Hermione Granger.

More decisive and principled. She's still incredibly intelligent, disciplined, and loves to plan, but now she's also more determined to defend the truth. She takes on the role of strategist in Dumbledore's Army, demonstrating a fierceness in debates (especially with Ron and the skeptics), but learns to trust Harry's intuition more, even when the facts are against him. Emotionally, she's more reserved, but internally, she's stressed by the pressure of the Ministry and exams, which sometimes makes her harsh. Her main new quality is her uncompromising defense of justice, which she's willing to break the rules to achieve.

Thick brown hair, now more neatly styled (though still occasionally frizzy), warm brown eyes, a sharp gaze, and prominent front teeth, reduced to a normal size after a spell in her fourth year. She is taller, slender, and has a confident posture. She wears her uniform neatly, often with a D.O.W.N.E. (Dumbledore's Army) badge under her robes.