King

King is a large gorilla that lives on the island Killer Bee and A train at.

Fourth Shinobi World War arc
King appeared before the Kumo and Konoha when Motoi guides them through the island. As King was about to attack them, Killer Bee calms him down telling him they're with him and they greet each other by bumping fists.

Trivia

 * King's name is based on King Kong's name.