Philip Madoc (born Philip Arvon Jones) was a Welsh actor. He performed many stage, television, radio and film roles, and was recognised for having a "rich, sonorous voice" and often playing villains and officers. On television, he starred as David Lloyd George in The Life and Times of David Lloyd George (1981) and DCI Noel Bain in the detective series A Mind to Kill (1994–2002). His guest roles included multiple appearances in the cult series The Avengers (1962–68) and Doctor Who (1968–1979), as well as playing the U-boat captain in the Dad's Army episode "The Deadly Attachment" (1973). He was also known to be an accomplished linguist.