Peter Vaughan (4 April 1923 - 6 December 2016) was an English character actor, known for many supporting roles in British film and television productions. He also worked extensively on the stage.
He was best known for his role as Grouty in the sitcom Porridge (despite appearing in only three episodes and the 1979 film) and also had a recurring role alongside Robert Lindsay in Citizen Smith, written by John Sullivan. He also had parts as Tom Franklin in Chancer (1990-1991) which ran for 20 episodes, and as Maester Aemon in HBO's Game of Thrones (2011-2015).