Jayne Wisener (born 19 May 1987) is a Northern Irish actress and singer. She plays Johanna in the film Sweeney Todd: The Demon Barber of Fleet Street. Wisener was born in Ballymoney and grew up in Coleraine, Northern Ireland, where she attended the Coleraine High School for girls. After graduating, she went on to train at the Royal Scottish College of Music and Drama. In 2005, she represented Antrim in the highly acclaimed Rose of Tralee competition. Wisener also was part of Musical Theatre 4 Youth, and appeared in a workshop production of Falling.