The headmaster of Durmstrang, a school of magic in Eastern Europe. Karkaroff wears sleek furs and openly favors Viktor Krum over all of his other students. Harry describes Karkaroff as "fruity" and as having an "unctuous" voice, which makes Harry suspicious of Karkaroff from the start. Karkaroff appears afraid of Professor Moody and Harry later learns that this is because Karkaroff used to be a Death Eater and spent time in Azkaban with Sirius. When Harry takes a trip into Dumbledore's Pensieve, he has the opportunity to watch Karkaroff's trial in front of Mr. Crouch where Karkaroff accuses many people of being Death Eaters, including Snape. For this reason, when Voldemort summons his Death Eaters, Karkaroff runs away rather than obey the call--he put many of Voldemort's supporters in Azkaban and fears retaliation.