The actor made his Broadway debut as Forrest Noble in The Conquering Hero in 1961, followed by Blood, Sweat and Stanley Poole that same year. He created the role of Oscar in Sweet Charity in 1966, opposite Gwen Verdon, garnering a Tony nomination, and repeated the role in the 1969 film opposite Shirley MacLaine.
He later starred in the original Broadway production of Sondheim’s Follies in 1971 as Benjamin Stone. His association with Sondheim continued, appearing in A Little Night Music as Frederick at the Ahmanson Theatre, Los Angeles, in 1991, and the Broadway revival of Into The Woods in 2002, in the dual role of the Narrator/Mysterious Man and was again Tony nominated. He was nominated for a Tony in 1995 for Show Boat and in 1998 for High Society, which also earned McMartin another Drama Desk nod. His latest role was Anton Schell opposite Chita Rivera in Kander and Ebb’s musical The Visit in Chicago.
Mr. McMartin is survived by his longtime partner Irish Rep’s Charlotte Moore.