Khamûl is one of the playable in-game characters in LEGO Dimensions 2: The Rise of Enoch, from the Lord of the Rings franchise.
Khamûl was once one of the Nine Kings of Men. He was given a Ring of Power by the dark sorcerer Sauron, as were the rest of the Kings of Men. Their rings corrupted them, turning them into the Nazgûl. As a Nazgûl, he was the Witch-King's right-hand man.