Faust, Goffredo in Rinaldo, Grigory in Boris Godunov, Fernando in La favorita, Hoffmann, the Italian Singer in Der Rosenkavalier, Kodanda in Menotti's The Last Savage, Lensky in Eugene Onegin, Lionel in Martha, the title role in Lohengrin, Maurizio in Adriana Lecouvreur, Narraboth in Strauss's Salome, Pinkerton, Pollione in Norma, Riccardo in Un ballo in maschera, Rodolfo in La bohème, Rodolfo in Luisa Miller, Roland in Esclarmonde, Tamino in The Magic Flute, Tito in La clemenza di Tito, Tonio in La Fille du Régiment, and Walther von Stolzing in Die Meistersinger von Nürnberg among others. During his long and distinguished career at the Met, Alexander sang opposite many famous artists, including the Met debuts of Renata Scotto (Pinkerton to her Butterfly), Montserrat Caballé (Faust to her Marguerite) and, in the same night as Caballé, Sherrill Milnes' (who portrayed Valentin). His last performance at the Met was on October 5, 1987, portraying Bacchus opposite Jessye Norman's Ariadne in Ariadne auf Naxos. Although Alexander worked mostly in New York City he did occasionally travel to perform in other opera houses. In 1967 he made his debut with the San Francisco Opera as Julien in Gustave Charpentier's Louise. He returned to that company a few more times during his career, singing Rodolfo (1969), Pollione (1972), and Hoffmann (1987). Also in 1967, Alexander sang the role of Paul in Korngold's Die tote Stadt for his first performance with the Vienna Volksoper. The following year he sang the role of Rodolfo in La bohème at the Vienna State Opera. In 1970 he made his Royal Opera House at Covent Garden debut as Pollione and in 1973 he sang for the first time with the Opera Company of Boston as the title role in Verdi's Don Carlos. In 1975 he made his first appearance with the Opera Company of Philadelphia as Calaf in Turandot opposite Elinor Ross in the title role. He also performed in a few roles with the Berlin State Opera, the Bavarian State Opera, and the Cincinnati Opera. Alexander sang relatively few performances outside of New York City, a conscious choice on his part. He chose to not travel in favor of having a stable life with his wife Sue and their daughter, Cindy. The family made their home on Long Island during the late 1950s through the early 1970s. At this point, Alexander joined the voice faculty at his alma mater in Cincinnati,