* Bellatrix Lestrange: A powerful and ruthless Death Eater, deeply loyal to Voldemort and responsible for the deaths of several key characters.
* Severus Snape: While initially appearing as a villain, Snape's true allegiance and motivations are revealed to be much more complex and nuanced, making him a tragic character rather than a simple villain.
* The Death Eaters: A group of dark wizards who serve Voldemort, carrying out his wishes and spreading terror.
* Fenrir Greyback: A werewolf who serves Voldemort and is known for his brutality and savagery.
* Peter Pettigrew: A former friend of Harry's parents, who betrayed them to Voldemort and has been serving him ever since.
* The Ministry of Magic: The Ministry is initially oblivious to Voldemort's return and often acts as a hindrance to Harry and his friends.
* The Goblins: While not inherently evil, the goblins of Gringotts are primarily concerned with their own interests and ultimately side with Voldemort in the war.
It's important to remember that the villains in Harry Potter are often complex characters with their own motivations and justifications, even if their actions are morally reprehensible.