Witch-King of Angmar

Witch-King of Angmar, or simply the Witch king is a character in ''Lord of the Rings trilogy. ''Portrayed and voiced by he  was the leader of the Nazgûl or Ringwraiths and Sauron's second-in command and his name long forgotten

Before the Quest of Erebor
The Witch-King was once a fair and just ruler along with the rest of the Kings. However, a man named Annatar approaches them and crafts for them nine rings. However, the Rings quickly corrupt the Witch-King and his members, turning into Ring-wraiths and are sealed in the tombs.

During the Quest of Erebor
Risen from his grave, the witch king is called by Sauron. He first attacks Radagast, who is intruding Dol Gulldur before the wizard flees for his life.

After the Quest of Erebor
When the White council goes in to rescue Gandalf from Dol Guldur, the Nazgûl attack, but are quickly overpowered by Galadriel and her allies.