Comparing performers from different eras means weighing the controlled grandeur of Old Hollywood against the bruised naturalism of modern cinema. Yet the greatest actors share one stubbornly rare ability: they can disappear into a character without sacrificing the magnetism that made audiences watch them in the first place. Ranked by range, defining performances, cultural influence, and sheer command of the screen, these 25 actors didn’t merely create unforgettable roles—they changed what movie acting could be.
