(b Vienna, 1930).
Austrian producer and actor. Began career as actor (Salzburg 1952 in Nestroy's Die Träume von Schale und Kern) and was noted for portrayal of the jailer Frosch in Die Fledermaus. First opera prod. was Die Zauberflöte, Salzburg Landestheater 1957. Moved to forefront with Vienna Fest. prods. of Dantons Tod and Lulu, 1962. Salzburg début as prod. 1963; Vienna Opera 1964 (resident dir. from 1965); NY Met début 1968; La Scala 1974; CG 1975. Prod. Der Ring des Nibelungen, NY Met 1986–91.