For any actor, winning an Oscar is a lifetime achievement. It is a stunning recognition by one's peers the in, in any given year, they gave an extraordinary and memorable performance that will forever stand the test of time. Fittingly, it is a feat most rarely accomplish. There are, however, a few who have been honored with the award more than once. Those on that list are amongst the finest actors of their generation. While not all are household names, each will forever be remembered in an industry defined by ferocious competition and brief longevity.