New York Post Online Edition: gossip KIEFER Sutherland's granddad Tommy Douglas has been voted "the Greatest Canadian" in a two-month, country-wide vote via a reality TV-type show on the CBC network. Douglas — Donald Sutherland's ex-daddy-in-law and the premier of Saskatchewan province — founded and championed the Soviet-style form of medicare so cherished by pious Canadians, who don't mind waiting years for elective surgery. Tommy battled against the likes of hockey great Wayne Gretzky and the inventor of the phone, Alexander Graham Bell, who was born in Scotland, and died an American, but did some work in Canada.