enuka vanessa okuma (; born september 20, 1976) is a canadian actress, best known for her role as detective traci nash in the global/abc police drama series, "rookie blue" (2010–2015). okuma is also known for her work on the canadian television series "madison" (1994–1998) and "" (2002–2005). she appeared in the first season of tv soap-opera "hillside" as the scheming and conspiring kelly.