Black Panther

: "My name is King T'Challa, son of King T'Chaka. I am the sovereign ruler of the nation of Wakanda."
: ―T'Challa[src]
King T'Challa was the King of Wakanda and the eldest child of T'Chaka and Ramonda who was chosen to be the holder of the Black Panther mantle. Following the death of his father in the bombing orchestrated by Helmut Zemo, T'Challa had set out to kill the Winter Soldier, who was widely believed to be responsible for the attack. During his attempt to find the Winter Soldier, Black Panther had joined a civil war between the Avengers, where he sided with Iron Man. However, when T'Challa learned that Zemo was the one who had been responsible for his father's demise, he captured Zemo and handed him over to Everett Ross, while he vowed never to allow desires of vengeance to consume him again.
Upon returning into Wakanda, T'Challa was officially crowned King, and began to track down Ulysses Klaue. However, T'Challa failed to capture Klaue and instead was forced to bring Everett Ross to the city to save his life. T'Challa's leadership was challenged when his cousin, Erik Killmonger, came into Wakanda, having killed Klaue and challenged T'Challa for their throne. Killmonger bested T'Challa in a duel, taking the crown. However, T'Challa had survived the duel and, with the help of M'Baku and his family, returned to Wakanda where he defeated Killmonger. Following the conflict, T'Challa returned to the United Nations to share Wakanda's secret wealth with the rest of the world.
Black Panther was then called upon by the Avengers, as they had uncovered Thanos' plan to claim all six Infinity Stones. T'Challa allowed the Avengers to keep Vision in the city, where Shuri could remove the Mind Stone. However, Wakanda was then invaded by Thanos' forces, who ultimately overpowered the Wakandans as Thanos completed his goal by wiping out half of life, killing Black Panther as a result. However, Black Panther was resurrected five years later by Hulk, as he then joined the Avengers in a final battle against an alternate Thanos, ending in the Avengers' victory. Following this, T'Challa returned to his kingdom and reunited with his sister and mother, but he later unexpectedly passed away from an unspecified illness. Nonetheless, his legacy as the Black Panther was carried on by his sister, in addition to leaving behind a son that he had conceived with Nakia.