Zephani Idoko is a Nigerian-American actress best known for her role as Sallay in Blumhouse and Amazon Studios' Nanny, (written and directed by Nikyatu Jusu) which won the top award (The Grand Jury Prize) at Sundance Film Festival. She's also known for her starring role as Abena in Horror film The Unsettling and for playing Stephanie on the Starz show Power book II: Ghost and Ashley on HBO Max's Gossip Girl (Via Wikipedia)