Saruman

Saruman the White is a fictional character of the Middle-Earth franchise who served as the secondary antagonist in The Lord of the Rings trilogy and a supporting protagonist in The Hobbit trilogy.

He specifically appeared as the secondary antagonist in The Fellowship of the Ring, the true main antagonist in The Two Towers, the quaternary antagonist in The Return of the King, and a supporting protagonist in both An Unexpected Journey and The Battle of the Five Armies.