Multiple choice general knowledge Who is Harry's defence against the dark arts teacher in his foruth year? Lucius Malfoy Mad-Eye Moody Snape none Reveal answer Fill a bubble to check yourself B Correct answer Explanation Though it was actually Barty Crouch Jr. disguised as Mad-Eye Moody using Polyjuice Potion throughout the year, the officially listed Defense Against the Dark Arts teacher for Harry's fourth year at Hogwarts was Alastor 'Mad-Eye' Moody.