T'Challa is the monarch of the African nation of Wakanda. As the Wakandan monarch, he is also holder of the Black Panther mantle.
Real Name: T'Challa
Portrayed by: Chadwick Boseman
1. Captain America: Civil War
After his father was killed in a bombing attack orchestrated by Helmut Zemo, the new monarch set out to kill the Winter Soldier, whom was widely believed to be responsible for the attack.
After being drawn into the Avengers Civil War and siding with Iron Man, T'Challa learned the truth about Zemo's deception and decided to help the Winter Soldier by granting him asylum in Wakanda and also help him get a cure for his mental programming.
2. Black Panther
After his coronation, T'Challa began hunting down Ulysses Klaue, only to be confronted by his cousin Erik Killmonger, who sought the throne for himself. After a lengthy campaign, T'Challa defeated Killmonger and decided to introduce Wakandan technology to the United Nations.
3. Avengers: Infinity War
Two years later, he assisted the Avengers in trying to stop Thanos and the Black Order from obtaining the Infinity Stones, resulting in a massive confrontation between the Black Order, the Avengers, and Wakanda's army.
However, while T'Challa and his allies managed to kill off all of Thanos's forces, Thanos came to Wakanda. The Mad Titan completely overpowered T'Challa and the heroes and retrieved the Mind Stone, completing the Infinity Gauntlet.
T'Challa disintegrated into ashes alongside Sam Wilson, Wanda Maximoff, Bucky Barnes and Groot when Thanos wiped out half of every civilisation in the universe with the completed Infinity Gauntlet.