Ulysses Klaw is a long-time foe of numerous Marvel characters, including Black Panther, who first appeared way back in 1966. He was an assassin who was hired to take down T'Chaka, Black Panther's father, at the Bilderberg conference in the case that he refused to negotiate Wakanda's resources (including the already present element in the Marvel Cinematic Universe, vibranium). But Klaw was also there for personal reasons, as T'Chaka had killed his great-grandfather in the nineteenth century while he was trying to take over Wakanda. He was paid ten million dollars for the kill. Klaw hid for a week beneath the surface and emerged once there was no doubt that any deal would be impossible. Killing T'Chaka, he was wounded and forced to retreat by the young T'Challa, which not only cemented their rivalry, it also propelled T'Challa to the leadership of Wakanda. This story would provide an emotional and eventful storyline to the Black Panther movie and would turn T'Challa from a prince to a king, making him ready for further adventures with the Avengers in future movies. Basically, Klaw's inclusion would make for a great origin movie for Black Panther.