Yaxley

Yaxley (first name unknown) is the brutal-faced Death Eater that is present in the battle in which Snape killed Dumbledore. He is one of the more prominent Death Eaters, and one of Voldemort's spies in the Ministry of Magic. In Harry Potter and the Deathly Hallows, Yaxley argues with Snape about the correct date of Harry's departure from the Dursley’s, but John Dawlish, an Auror who is tricked by an Order member, gives him incorrect information. Yaxley announces to an impressed assemblage of Death Eaters that he has placed the Imperius Curse upon Pius Thicknesse, the Head of the Department of Magical Law Enforcement. He uses Thicknesse to Imperius the other major department heads and they allow Voldemort to murder Rufus Scrimgeour; thus Thicknesse becomes Minister for Magic.

When Harry, Ron and Hermione enter the Ministry to find Slytherin's locket, it is revealed that Yaxley has become Head of Magical Law Enforcement. He also assists Dolores Umbridge in leading the Muggle-Born Registration Commission, and the two seem to have a good relationship, together humiliating the Muggle-borns. Both are immobilised by Harry, but Yaxley recovers and grabs Hermione while she is Apparating her friends to safety. Yaxley arrives with them at Grimmauld Place, allowing him to reveal their headquarters to the Death Eaters, but not to the location that the trio immediately Apparate to.

He participates in the Battle of Hogwarts, where he duels Professor Flitwick and is later seen among those who wait with Voldemort for Harry Potter to come to him, mistakenly believing that Harry would not come within the allotted time. When the battle resumes, he is defeated by George Weasley and Lee Jordan.