| WARNING! |  |
| The information in this article comes from Marvel's Warlord of Mars and is not written by Edgar Rice Burroughs. |
Karak was once a Thark, but he Joined the Council of Five because he felt that Tars Tarkas, who was once his mentor, had betrayed the green horde that he ruled. He died in the Ebony Island when Tars Tarkas threw an explosive device at him.