[2] Neil made her professional stage debut in Fantastic Mr Fox at Regent's Park Open Air Theatre in 2007.
[6] Neil played Adina in the television film adaptation of Zadie Smith's NW and had a recurring role as Jessica in the fifth series of the BBC Two and Showtime sitcom Episodes.
[9] In 2020, Neil joined the cast of the German Sky One war series Das Boot for its second season as Cassandra Lloyd, a Harlem jazz singer.
[10][11] As announced in 2019,[12] Neil played Annie Carbey, a criminal with the ability to control fire, in the 2021 HBO science fiction drama series The Nevers.
[15] Neil starred as the lead character Leah Whittaker in Lenny Henry's 2023 miniseries Three Little Birds for ITVX, inspired by his mother's story of arriving in Britain from Jamaica in the 1950s.