Lisa Greenwood is a British actress recognized for her versatile performances across television, film, and audio dramas. She gained prominence portraying Sissy Cooper, an office assistant, in the BBC's critically acclaimed series The Hour (2011–2012), acting alongside Ben Whishaw and Dominic West. In 2012, Greenwood appeared as Shirley Dent in the BBC period drama Call the Midwife, further establishing her presence on British television. Her film work includes the role of Charlotte Taylor in the 2015 science fiction movie Capsule. Beyond screen acting, Greenwood has made significant contributions to audio dramas, notably portraying Flip Jackson, a companion to the Sixth Doctor, in several Doctor Who audio stories produced by Big Finish Productions. Greenwood's early life was rooted in East Ham, within the London Borough of Newham and Essex. She began her acting journey after being spotted at a local youth group, leading to her selection as the face of a Sony PlayStation campaign.