Oluwunmi Olapeju Mosaku, known professionally as Wunmi Mosaku, is a Nigerian and British actress who has become one of the most compelling and versatile performers of her generation. Born on 31 July 1986, she first rose to prominence with her role as Joy in the BBC Two miniseries Moses Jones (2009), a performance that showcased her raw emotional depth and immediately marked her as a talent to watch. She followed this with a notable turn as Holly Lawson in the long-running ITV series Vera (2011–2012), where she held her own alongside Brenda Blethyn and gained widespread recognition from British television audiences. Mosaku’s career reached a major milestone when she won the BAFTA TV Award for Best Supporting Actress for her portrayal of Gloria Taylor in the television film Damilola, Our Loved Boy (2016), a heartbreaking true story that demonstrated her ability to anchor a drama with profound sensitivity and power.

Mosaku continued to build an impressive resume across both British and American productions. In 2019, she appeared in the fifth season of the acclaimed BBC crime drama Luther, sharing the screen with Idris Elba and further cementing her reputation for intense, character-driven work. The following year, she delivered a breakthrough performance in the HBO horror-drama series Lovecraft Country (2020), playing Ruby Baptiste, a role that allowed her to explore themes of racial identity and transformation with remarkable nuance. That same year, she starred in the British independent horror film His House (2020), for which she earned a BAFTA nomination for Best Actress and won the British Independent Film Award (BIFA) for Best Performance by an Actress in a British Independent Film. Her portrayal of Rial, a South Sudanese refugee haunted by supernatural forces, was widely praised as a masterclass in emotional and physical acting.

Mosaku expanded her reach into blockbuster filmmaking when she joined the Marvel Cinematic Universe, playing the character Hunter B-15 in the Disney+ series Loki (2021–2023). Her role as a stoic but evolving Time Variance Authority agent earned her a dedicated fanbase and showcased her ability to bring humanity to a universe of spectacle. She reprised the role in the film Deadpool & Wolverine (2024), further solidifying her place in one of the most popular franchises in entertainment history. In 2025, Mosaku delivered another award-caliber performance in the horror film Sinners, playing the role of Annie. For this work, she won both the BAFTA Award for Best Actress in a Supporting Role and the Gotham Independent Film Award for Outstanding Supporting Performance, and she received nominations for an Academy Award, a Critics' Choice Movie Award, and an Actor Award, underscoring her status as a critically acclaimed talent on the global stage. With a career that seamlessly bridges intimate British dramas, prestige television, and major studio franchises, Wunmi Mosaku continues to be celebrated as a formidable and deeply respected actress.