Ulysses Klaue was an international criminal and underground black-market arms dealer. In 1992, Klaue had been recruited by N'Jobu to steal a stockpile of vibranium from Wakanda in order to aid N'Jobu in causing a revolution. While Klaue managed to escape with the stockpile, he received a brand on his neck from the Wakandans. In 2015, Klaue had sold all of his vibranium to Ultron, who cut off one of his arms. To replenish his stock, Klaue, armed with a new prosthetic arm, joined forces with Erik Killmonger. Klaue's recent actions were noticed by the Wakandans and he was hunted down by Black Panther and the Dora Milaje. Following a brief conflict, Klaue was captured and handed over to Everett Ross in South Korea. Despite being rescued by Killmonger, Klaue was still ultimately betrayed and murdered by Killmonger as a way for him to enter Wakanda and challenge T'Challa for the throne.