Not every ballet dancer can manage this kind of range-or maintain it for as many years as he has-but whether partnering with ballerinas as a go-to story ballet prince or embracing the animalistic verve of Crystal Pite's Emergence, Postlewaite makes it look easy. His expression is always legible from the cheap seats, his smile magnetic, and when he retires at the end of the company's current season, he'll leave a prince-sized hole in his wake.