In 1981, Morrison married Suzanne (née Langford) Perry, a Writer, consultant and political fund-raiser who was also Press Secretary to Canadian Prime Minister Pierre Trudeau. He became stepfather to Future Friends star Matthew Perry and, later, father to Caitlin (born 1981), Emily (born 1985), Willy (born 1987), and Madeleine (born 1989). He also has a son, Michael (born 1974), from a previous marriage.