Rudolf Nureyev | Rudolf Steiner | Rudolf Virchow | Rudolf Hess | Rudolf II, Holy Roman Emperor | Rudolf Kempe | Rudolf Hilferding | Rudolf | Hartmann | Rudolf Schwarz | Rudolf Haag | Rudolf, Crown Prince of Austria | Rudolf Schwarz (conductor) | Rudolf Platte | Rudolf Nebel | Rudolf Carnap | Rudolf Thurneysen | Rudolf Stingel | Rudolf Serkin | Rudolf II | Rudolf Bultmann | Rudolf Baumgartner | Rudolf von Jhering | Rudolf Scharping | Rudolf Otto | Rudolf (musical) | Rudolf Kreitlein | Rudolf III, Duke of Saxe-Wittenberg | Rudolf Hruska | Rudolf Flesch |
Unger's other Salzburg Festival roles included Monostatos in two different stagings of The Magic Flute (1967, 1968 and 1970, staged by Oscar Fritz Schuh and conducted by Wolfgang Sawallisch; 1974 staged by Strehler and conducted by Karajan, and Valzacchi in Richard Strauss' Der Rosenkavalier (1969, staged by Rudolf Hartmann, designed by Teo Otto, and conducted by Karl Böhm).