Oluwunmi Mosaku is a Nigerian-born British actress. She is known for her roles as Joy in the BBC Two miniseries Moses Jones (2009) and Holly Lawson in the ITV series Vera (2011–2012). She won the BAFTA TV Award for Best Supporting Actress for her role as Gloria Taylor in the TV film Damilola, Our Loved Boy (2016). In 2019, she starred in the fifth series of Luther. In 2020, she starred as Ruby Baptiste in HBO's Lovecraft Country, and starting in 2021, starred as Hunter B-15 in the Marvel Cinematic Universe (MCU) television series Loki.