When a new professor's methods leave Hogwarts unprepared to fight the rising tide of evil, Harry teaches students how to defend against the dark arts.
Harry Potter
Ron Weasley
Hermione Granger
Dolores Umbridge
Bellatrix Lestrange
Rubeus Hagrid
Sirius Black
Lord Voldemort
Albus Dumbledore
Severus Snape
