Other notable bad wizards include:
* Severus Snape: He was initially a Death Eater but later turned against Voldemort and became a loyal member of the Order of the Phoenix.
* Bellatrix Lestrange: A sadistic Death Eater and Voldemort's most loyal follower.
* Draco Malfoy: Initially a bully and a follower of Voldemort, he eventually helped Harry in his fight against the Dark Lord.
* Lucius Malfoy: Draco's father and a powerful Death Eater.
* Barty Crouch Jr.: Impersonated Alastor Moody and worked for Voldemort.
* Peter Pettigrew: A cowardly Death Eater who betrayed James Potter and Lily Potter, leading to their deaths.
* Fenrir Greyback: A werewolf and a dangerous Death Eater.
This is not an exhaustive list, but it highlights some of the most significant bad wizards in the Harry Potter series.