Margaret John

Margaret John (born 1926) is a Welsh actress. She has appeared regularly on television and in film since 1960 and has appeared in series such as Coronation Street, Z Cars and Dixon of Dock Green. Her genre credits include two appears in Doctor Who (once in 1968 and again in 2005) and roles in Blake's 7 and [wikipedia:Doomwatch|Doomwatch]]. She has recently gained new fans in the role of Doris in the successful British comedy series Gavin and Stacey. In 2009 she won a Welsh BAFTA Lifetime Achievement Award.

In Game of Thrones John plays Old Nan. She was announced in the role on 16 July 2010.