Geraldine "Gerry" Cowper (born 23 June 1958) is an English actress who is best known for playing Rowan Morrison in the 1973 British Lion classic horror film, The Wicker Man and later as Rosie Miller in EastEnders. In the mid-1980s she took the part of Clare France in After Henry on BBC radio and also appeared on television as Jim Hacker's daughter in Yes Minister.