Clarinetist, Nicholas Gallas has performed as a guest with a diverse range of artists and ensembles, including the orchestras for "The King and I" (Broadway), "Fiddler on the Roof" (Broadway), "Natasha, Pierre and the Great Comet of 1812" (Broadway), and "Sunset Boulevard" (Broadway), the Imani Winds, NOW Ensemble, Decoda, Argento Chamber Ensemble, Ensemble Signal, the New Jersey Symphony Orchestra, the American Symphony Orchestra, American Ballet Theater, the Harrisburg Symphony, the Stamford Symphony, the Northeastern Pennsylvania Philharmonic, the Princeton Symphony, the Hudson Valley Philharmonic, Symphony in C, Chamber Orchestra of New York, the New Jersey Festival Orchestra, Onsite Opera, the Metropolis Ensemble, Sylvan Winds, Broadway Chamber Players, Either/Or, the Axiom Ensemble, Mimesis Ensemble, the New Juilliard Ensemble, and Duncan Sheik (U.S. Tour). He has also taught and performed in Mexico with Cultures in Harmony, an international cultural diplomacy project.

Gallas is currently a member of the American Modern Ensemble. From 2009-2014 he was a member of the Quintet of the Americas, a woodwind quintet that was founded in 1979 in Bogotá, Columbia.

Gallas received his Master of Music degree from the Juilliard School and his Bachelor of Music degree from the Cleveland Institute of Music.