Date of Birth 19 May 1967, County Meath, Ireland Birth Name Geraldine Margaret Agnew-Somerville Geraldine Margaret Agnew-Somerville is a British/ Irish actress. Somerville trained at the Guildhall School of Music and Drama (1989) in London. She did some stage work and appeared on TV in episodes of Agatha Christie's Poirot and Casualty (1993) before landing the role of Penhaligon or 'Panhandle', in Cracker. She has recently played Lady Stockbridge in Julian Fellowes's Gosford Park and Harry Potter's mother Lily in all four Potter movies. She will next work on Daphne a BBC TV drama in which she plays Daphne Du Maurier.