The life if Richard Wilson,the lugubrious actor best known from the series One Foot In The Grave,whose on-screen incredulity is invariably marked by the droll if exasperated phrase I dont believe it only became an actor at the age of 30.Born the son of a Clyside shipyard timekeeper,he became a hospital lab technician,but after ten years gained a place at Londons celebrated RADA drama school as a mature student.