Brian Mulligan is an American operatic baritone. Born in Endicott, New York, Brian Mulligan studied at Yale University and the Juilliard School. His primary voice instructor is W. Stephen Smith, who he studies with currently. Brian Mulligan debuted at the Metropolitan Opera while still a student at Juilliard, in December 2003 in Die Frau ohne Schatten. Since then, he has gone on to perform at some of the most important opera houses in the world, including San Francisco Opera, Lyric Opera of Chicago, Los Angeles Opera, New York City Opera and Houston Grand Opera. Mulligan has garnered much critical acclaim in his young career, particularly for his performances of Richard Nixon in Nixon in China with San Francisco Opera, Enrico in the David Alden production of Lucia di Lammermoor at Canadian Opera Company, English National Opera and Washington National Opera, and Valentin in Faust at the Metropolitan Opera and San Francisco Opera. Other roles in his repertoire include the title roles in Hamlet and Eugene Onegin, Renato in Un ballo in maschera and Amfortas in Parsifal.