W'Kabi

W'Kabi is a supporting antagonist of the 2018 superhero-film Black Panther. He is the head of security for Wakanda's Border Tribe as well as the best friend of T'Challa who would later turn on him in favor for Erik Killmonger.

He was portrayed by Academy Award nominated actor, Daniel Kaluuya who also portrayed Black Death in Kick Ass 2.

History
W'Kabi started out as a best friend to T'Challa, and the lover to the Dora Milaje general Okoye. However, W'Kabi lost his parents thanks to an attack caused by the wanted weapons dealer named Ulysses Klaue (due to N'Jobu's treason). T'Challa then vowed to W'Kabi that he would track down Klaue and make him answer for his crimes against Wakanda.

Though T'Challa was able to help capture Klaue, Erik concocted a successful scheme to free Klaue from custody, only to kill him in order to gain access to Wakanda. Feeling disgraced over T'Challa's failure, W'Kabi lost his faith in him, Eventually, Erik arrived over to Wakanda bringing Klaue's body, which motivated an impressed W'Kabi to ally himself with Erik.

W'Kabi then reveals his new allegiance to T'Challa as Erik challanges the latter to a duel. After T'Challa lost, W'Kabi watches in satisfaction as Erik throws T'Challa into a waterfall to his death. W'Kabi then procceded to aid Erik's next plan in selling vibranium shipments around the world to ignite a global conflict.

However, this wasn't the case when T'Challa is rescued by the Jabari tribe (led by M'Baku), who agreed to help him overthrow Erik and stop the shipments. Noticing the return of T'Challa, along with the arriving Dora Milaje and Jabari Tribe, Erik sends off W'Kabi and his men to engage into a battle. However, T'Challa was able to defeat Erik in combat before fatally stabbing him, which allowed Okoye to confront W'Kabi for his betrayal and forced him and his remaining men to surrender.