Antony Zwerdling performs opera, oratorio, and recital repertoire across the United States. He has appeared in over twenty-five operatic roles, including Papageno in Zauberflöte, Eisenstein and Falke in Die Fledermaus, Sid in Albert Herring, Marcello and Schaunard in La  Bohème, and Figaro in Il Barbiere di Sivilia. As an oratorio soloist, his repertoire includes Händel's Messiah, Bach's St Matthew Passion, and the requiems of Brahms, Mozart and Fauré. He has presented ten different recital programs, choosing repertoire that spans a wide range  of stylistic periods and genres.

He has performed with numerous opera companies, including Washington National Opera, Wolf Trap Opera Company, Maryland  Opera,  Opera Lafayette, INSeries, Maryland Lyric Opera, Boston Lyric Opera, Lake George Opera, Washington Concert Opera, and Charlottesville Opera. For concert work, Zwerdling has sung professionally as both soloist and ensemble member with Washington Bach Consort, Handel and Haydn Society, Cathedral Choral Society, Thomas Circle Singers, Chesapeake Choral Arts Society, Modern Musick, Baltimore Choral Arts Society, The Washington Chorus, Loudoun Chorale, Easton Choral Arts Society, Washington Master Chorale, and Philharmonia Baroque.  He has also presented recitals for Music at Penn Alps as well as the Ward Virts and Benny C. Morgan recital series.

Zwerdling received his bachelor's degree from Northwestern University, performance certificate from The Boston Conservatory, and master's degree from Boston University.  In 2007, he earned his doctorate from Shenandoah Conservatory, writing about the songs of Samuel  Barber. He teaches voice at Hood College and College of Southern Maryland in addition to maintaining a private studio.