Bellatrix Lestrange

Bellatrix Lestrange (née Black), also known as Bella by Lord Voldemort and Narcissa Malfoy, is the secondary antagonist of the Harry Potter series. She is a flashback character in Goblet of Fire, a major antagonist in both Order of the Phoenix and Half-Blood Prince, the secondary antagonist of Deathly Hallows and a posthumous antagonist in Cursed Child.

She is a Death Eater who was fanatically loyal to Lord Voldemort and was among the most dangerous and sadistic of his followers. All the Black sisters married pure-blood wizards, except for Andromeda who married Muggle-born Ted Tonks and was disowned by the family. After her master's return, she followed him throughout the Second Wizarding War, and murdered her cousin, Sirius Black. She was then killed by Molly Weasley.