Geraldine Somerville is an Irish-British actress who plays Lily Evans in the film adaptations of the Harry Potter series. She had more substantial roles in Harry Potter and the Philosopher's Stone and Harry Potter and the Goblet of Fire, and appeared mainly in photographs in the other films. She reprised her role as Harry Potter's mother for Harry Potter and the Deathly Hallows: Part 1 and Part 2.
Somerville trained at the Guildhall School of Music and Drama (1989) in London. She did 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, which she held from the show's inception in 1993 until its demise in 1995 and became one of the most memorable characters of the series.
Somerville played Lady Stockbridge in Julian Fellowes's Gosford Park and Harry Potter's mother Lily in some Potter movies. In May 2007, she played author Daphne du Maurier in the BBC TV drama Daphne. She plays a leading role as fictional Louisa, Countess of Manton in the 2012 ITV mini-series Titanic.