The renowned American bass-baritone, who previously triumphed at TDO as Leporello/Don Giovanni, has sung an exceptionally diverse repertoire worldwide. Among his successes with North American companies are Golaud/Pelléas et Mélisande and Escamillo/Carmen at the Metropolitan Opera; seven roles at Lyric Opera of Chicago, most recently the King of Scotland/Ariodante; and Enrico/Anna Bolena at the Canadian Opera Company. In Europe he has earned acclaim at the Royal Opera House, Covent Garden (five roles to date), Barcelona’s Gran Teatre del Liceu and the Berlin State Opera (both as Mozart’s Figaro—like Leporello, a longtime signature role), Paris’s Théâtre des Champs-Élysées (as Golaud), Opernhaus Zürich (Rodolfo/La sonnambula), and the Festival d’Aix-en-Provence (as Nick Shadow/The Rake’s Progress), among other companies. He returns this season to the Munich’s Bayerische Staatsoper this season as Kaspar/Der Freischütz, and he will also sing Méphistophélès/La damnation de Faust at the Dutch National Opera. Ketelsen has collaborated with Esa-Pekka Salonen for performances with both the Los Angeles Philharmonic and the Philharmonia Orchestra. The bass-baritone has also appeared with the Chicago Symphony Orchestra in Stravinsky’s Pulcinella under Boulez (CD) and Berlioz’s Lélio under Muti.