[1] He made guest appearances at the Paris Opéra, and sang at the Metropolitan Opera (Met) in New York (1952–54).
[2] He made his Met debut on November 26, 1952 as Leporello to Cesare Siepi's Don Giovanni with Fritz Reiner conducting.
His other Met roles included Beckmesser, Faninal in Der Rosenkavalier, and Mozart's Figaro.
[3] Considered an outstanding singer-actor with a superb sense of comedy, he also enjoyed great success in operetta.
[2] He can be seen as Faninal in Paul Czinner's movie of Der Rosenkavalier with Elisabeth Schwarzkopf, conducted by Herbert von Karajan.