On 13 August 1988, Smith married Mary Theresa Poole (born 3 October 1958), whom he met in drama class at St Wilfrid's when he was 14. They have no children, the result of a joint decision early in life and in their marriage. Smith said he was against having children as he not only objects to having been born but refuses to impose life on another. Smith adds that he also "does not feel responsible enough to bring a child into the world". Smith and Poole have 25 nephews and nieces.