Antonio Comas was born in Barcelona where he studied piano, harmony and composition at the Academia Marshall, and singing with Montserrat Aparici.
Since his debut at the Gran Teatre del Liceu as a voce interna in the opera Heriodade by Massenet, with Caballé, Carreras and Pons, he has often been requested to sing at this theatre. It is worth mentioning his outstanding performance of the Italian singer in Capriccio by Richard Strauss.
He has performed at several Spanish theaters: at the Teatro de la Zarzuela in Madrid, at the Opera Season in Bilbao, Córdoba, Málaga, La Coruña, Santander and Pamplona, where he performed under the direction of Miguel Ortega, the Stabat Matter by Rossini and the Matheus-Passion by Bach.
He played the lead in the opera Asdrúbila by Carles Santos. In 1993 he was invited by the Opera Le Chatelet in Paris to participate in La Traviata by Verdi. At the Teatro Comunale in Treviso he performed the main roles in Così fan tutte and The Magic Flute by Mozart, conducted by Peter Maag.