Our 16th, the Right Hon. Joe "Who" Clark.

A Tory from Alberta, he was actually our youngest PM, at 39. He didn't last long in office, but he did break a 16 year Liberal streak, ousting Trudeau for nearly a year (before PET came back from a declared retirement to win the PMship back).

Famous for his weak chin, his party quickly replaced him as leader for the next election with the atomic chin of Brian Mulroney.