Karoc was a Human male was the twin brother of Vinoc and a Dark Acolyte of Count Dooku during the Clone Wars. He and his brother Vinoc were both assigned by Count Dooku to protect the cortosis droid factories on Metalorn. Unfortunately for them, the Dark Acolytes were confronted by the Jedi Knight Anakin Skywalker, who defeated them both in a lightsaber duel.