Barty Crouch

Barty Crouch was in charge of the Department of Magical Law Enforcement once. He spent too much time on this career to save his son, Barty Crouch, Jr., from becoming a Death Eater.

Barty Crouch appears only in Harry Potter and the Goblet of Fire. He is seen firing Winky the house-elf. We learn at the end that he lead a tragic existence, living out his last year under the Imperius Curse. He is killed by his son.