Sandra Woosan, also known as Lady Shiva she is a female Human who is a common thief with no ties to any known organizations and wears a mask.
Sandra Woosan was Helena Kyle's best friend at high school before leaving town. Years later she returned to New Gotham and committed a series of murders. The Birds of Prey discover that a thieving assassin known as Lady Shiva was the culprit and Oracle became determined to track her down and bring her to justice. (Birds of Prey episode: "Lady Shiva")