Merlok is the last of the wizards. He was killed defending Clay Moorington in a battle with Jestro and the Book of Monsters but had his consciousness rescued and downloaded into the Fortrex. He helps the Nexo Knights by uploading them with powers for battle.
- The Book of Knights
- Merlok 2.0
- In the TV series, Merlok is voiced by Brian Drummond.