In the UK, Jeff Stewart has appeared with the Royal Opera, Covent Garden, English National Opera, Opera North, English Touring Opera, Opera Northern Ireland, the Holland Park Festival and Raymond Gubbay at the Royal Albert Hall.
Major rôles for these companies include Tamino Magic Flute, Ferrando Cosi Fan Tutte, Edgardo Lucia di Lammermoor, Ernesto Don Pasquale, Nemorino Elisir d'Amore, Nadir Pearl Fishers, Duke of Mantua Rigoletto and Pinkerton Madama Butterfly.
Jeff has performed extensively abroad, and appearances include the Duke of Mantua and Edgardo for the Kömische Oper Berlin and Ernesto in Düsseldorf.
For Bremen, Jeff's rôles include Gounod's Roméo, Male Chorus Rape of Lucretia, Tamino Magic Flute, Count Almaviva Il Barbiere di Siviglia, Jenik Bartered Bride and Walther and Manolios The Greek Passion
Jeff recently had two years on principal tenor contract in Schwerin where he sang many of the lead tenor rôles. These included Lensky Eugene Onegin, Alfred Die Fledermaus, Andres Wozzeck, Chateauneuf Zar und Zimmermann, Cassio Otello and Ismaele Nabucco.
In 2005, Jeff sang the roles of Rodolfo La Boheme and Don Ottavio Don Giovanni in Osuna, Spain.
Jeff's future plans include the rôle of Symon in Millöcker's "Der Bettelstudent" in Coburg.