Harry Potter. Professor Dolores JaneUmbridge.

 

Draco Malfoy is Harry Potters arch enemy at Hogwarts school and is a pure blood slytherin student and son of death eater Lucius Malfoy and his wife Nacissa Malfoy.

Draco, upon the failure of his fathers tasks given by Lord Voldermort, was given his fathers task of killing professor Albus Dumbledore, a task which he could not complete given the fact that he never has and never could commit murder.

Draco and his family all avoid going to Azkaban prison due to their switch in allegiance.