Bonisile John Kani  is a South African actor, author, director and playwright, known for portraying T'Chaka in the Marvel Cinematic Universe films Captain America: Civil War (2016) and Black Panther (2018), Rafiki in the 2019 remake of The Lion King and Colonel Ulenga in the Netflix film Murder Mystery.

Kani joined The Serpent Players (a group of actors whose first performance was in the former snake pit of the zoo, hence the name) in Port Elizabeth in 1965 and helped to create many plays that went unpublished but were performed to a resounding reception. These were followed by the more famous Sizwe Banzi is Dead and The Island, in the early 1970s. Kani also received an Olivier Award nomination for his role in My Children! My Africa! In 1987 Kani played Othello in a performance of William Shakespeare's play of the same name in South Africa, which was still under apartheid. "At least I'll be able to kiss Desdemona without leaving a smudge," he said then.

Kani is executive trustee of the John Kani Theatre Foundation, founder and director of the John Kani Theatre Laboratory and chairman of the National Arts Council of SA. He starred as T'Chaka in the Marvel Studios blockbusters Captain America: Civil War (2016) and Black Panther (2018). The fact that Kani was a Xhosa native speaker led Chadwick Boseman, who played his onscreen son T'Challa, to make that Wakanda's language, and to learn whole scenes in Xhosa, although he had never studied the language before.