​From Wikipedia, the free encyclopedia. David Kelly (11 July 1929 – 12 February 2012) was an Irish actor who had regular roles in several film and television works from the 1950s onwards. One of the most recognisable voices and faces of Irish stage and screen,[1] Kelly was known for his roles as Rashers Tierney in Strumpet City, Cousin Enda in Me Mammy, the builder Mr O'Reilly in Fawlty Towers, Albert Riddle in Robin's Nest, and Grandpa Joe in the film Charlie and the Chocolate Factory (2005). Another notable role was as Michael O'Sullivan in Waking Ned Devine. Description above from the Wikipedia article David Kelly, licensed under CC-BY-SA, full list of contributors on Wikipedia