John McMartin was a distinguished Broadway actor who earned multiple Tony Award nominations across a career spanning more than four decades. His Broadway credits include Grey Gardens, Sweet Charity (originating the role of Oscar), Follies, Don Juan, Into the Woods, and High Society. He also appeared in the film All the President's Men and numerous television series.
McMartin was celebrated for his elegant bearing, dry wit, and ability to bring sophistication and depth to both musical and dramatic roles. His work in Sondheim musicals and classic Broadway productions established him as one of the finest actors of his generation. His legacy endures as an exemplar of the kind of versatile, intelligent stage acting that defines the best of the American theater tradition.