Slaine Kelly (born July 9, 1982) is an Irish television and film actress. Her first role was on the Irish short film Ouch directed by Ken Wardrop. She then went on to play a small part in George directed by Rory Bresnihan & John Butler the short stars Amy Huberman and Hugh O’Conor. Both shorts won a nomination for the Best Short Fiction Award at the Irish Film and Television Awards in 2005. She is best known for her role as Jane Howard/Jane Popincourt in The Tudors.