Sarah Greene is an Irish actress and singer. She had her career beginnings in the mid-2000s. During her early years, she made guest appearances in Bachelors Walk, Psych Ward, and Raw. In 2008, she made her film debut in Eden. She next appeared in the film Love and Savagery. She later had roles in the movies The Guard and Noble. Her first recurring role on television was as Hecate Poole in the television series Penny Dreadful. She later starred in the miniseries Rebellion. From 2017 to 2018, she starred as Maxine Carlson in the CBS series Ransom. She next starred as Cassie Maddox in the TV show Dublin Murders. In 2018, she had performances in the films Dublin Oldschool, Black 47, and Rosie.