Oluwunmi Olapeju Mosaku (born 31 July 1986), known professionally as Wunmi Mosaku, is a Nigerian-British actress. She rose to prominence 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 appeared in the fifth season of Luther, followed by her role as Ruby Baptiste in HBO's Lovecraft Country (2020). She portrayed the character Hunter B-15 in the Marvel Cinematic Universe (MCU) Disney+ series Loki (2021–2023). She reprised the role in the film Deadpool & Wolverine (2024).