Bellatrix Lestrange : Helena Bonham Carter
Bellatrix Lestrange, also known as Bella, was a pure-blood witch, the daughter of Cygnus and Druella Black and elder sister to Andromeda and Narcissa, one of the most faithful members of Voldemort's inner circle, She is pure evil, and believes in a pure blooded wizarding race, like her master. Bellatrix is portrayed as paranoid, mentally unstable and fanatically devoted to Voldemort. She takes an obvious pleasure in acts of torture and cruelty. Despite her apparent mental instability, she is a witch of prodigious ability, as demonstrated by all her victories in duels against other characters, and as noted by Harry in the final part.Bellatrix is one of the many Death Eaters who escapes Azkaban and rejoins him.She is described as having long, straight black hair and dark heavily lidded eyes. Bellatrix is portrayed as paranoid, mentally unstable and fanatically devoted to Voldemort. She takes an obvious pleasure in acts of torture and cruelty. Despite her apparent mental instability, she is a witch of prodigious ability.