Narcissa Malfoy- Wife to Lucius Malfoy. Mother to Draco Malfoy. Sister to Belltrix Lestrange. Not branded with the Dark Mark but with her son, husband, and sister as Death Eaters, she can be useful. In Harry Potter and the Deathly Hallows Part 2, though, she lied to Lord Voldemort and told him that Harry Potter was dead, so she could have permission to reunite with her son.
Her only apperance so far is in The Forbidden Forest 4865 in 2011. Known to be in Lego Harry Potter Years 5-7.