Celebrity February 17, 2020 Lupita Nyong’o Pays Tribute to 15-Year-Old ‘Queen of Katwe’ Co-Star Nikita Pearl Waliga Lupita Nyong'o paid tribute to her "Queen of Katwe" co-star Nikita Pearl Waliga in a touching Instagram post on Sunday, following the announcement of the 15-year-old's tragic death from brain cancer