Notable opera repertoire include: The title role, in Mozart’s Don Giovanni, as well as Leporello and Il Commendatore, Mephistopheles in Gounod’s Faust, Don Alfonso in Mozart’s Cosi fan tutte, Ramfis and Il Re in Verdi’s Aida, Colline in Puccini’s La Boheme, the title role of Handel’s Hercules, The King in Handel’s Ariodante, Osmin in Mozart’s Die Entführung aus dem Serail, Sarastro and the Speaker in Mozart’s Die Zauberflöte, Sparafucile in Verdi’s Rigoletto, Fasolt in Wagner’s Das Rheingold.

Jeanine Tesori and Tazewell Thompson’s opera Blue was written for him. It was named the best new opera of 2020 by the Music Critics Association of North America.

Never afraid to step outside of the box of traditional repertoire, Mr. Kellogg has been involved with several new operas. He sang the role of Queequeg in the workshop of Jake Heggie’s acclaimed, Moby Dick at San Francisco Opera. He led the cast in the west coast premier of Terence Blanchard’s Champion: An Opera in Jazz, as the champion boxer, Young Emile Griffith, to rave reviews with Opera Parallele. He has been a guest at the Opera America’s New Works Forum in NY, where among other roles, he brought to life the character of Sam Bankhead in Dan Sonenberg’s Opera, The Summer King, about the life of Negro League great, Joshua Gibson. He is a frequent collaborator with small companies pushing the boundaries of the Art of Opera and has lent his voice to several voice-over projects.