Orthanc is the late giant of Barmount Island, bludgeoned to death by Brandon Note after almost killing all the animals on the island. He fought with stone pillars chained together, much like a nunchuck. Yet when his nunchucks were broken, he was defenseless and was easily defeated. Not much is known about him, just that he's not from Elbaf.
- Orthanc is named after the Orthanc tower of Lord of the Rings, stationed in Isengard. Its similarity it that both are nicknamed indestructible.