Olunike Adeliyi was born in Toronto, Canada to Sunday Adeliyi, a Nigerian computer scientist and Roxiana Bell Adeliyi, a Jamaican nurse. Raised in both Jamaica and Canada, Olunike ultimately earned a place at the highly coveted American Academy of Dramatic Arts in New York City. After graduating from AADA, Olunike returned to Toronto to pursue a film, television, and theatre career which ultimately landed her the series-regular role of Leah Kerns in the highly rated and vastly popular television series, Flashpoint (2009-2012). Olunike's popularity gained momentum after her appearances in films and TV shows such as Titans (2019), American Gods (2019), and Workin' Moms (2019). Currently nominated for the 2021 Canadian Screen Award for her performance in the drama series Coroner.