Marius Brenciu was born in Romania. His repertoire includes Alfredo in La traviata, Gabriele Adorno in Simon Boccanegra, Macduff in Macbeth, Fenton in Falstaff, Ismaele in Nabucco (Verdi), Don Ottavio in Don Giovanni, the title role in Idomeneo (Mozart), Edgardo in Lucia di Lammermoor (Donizetti) and many other roles. He performs regularly at the Metropolitan Opera in New York, royal Opera House Covent Garden, the Vienna Staatsoper and the opera houses of Berlin, Brussels, Paris, Lyon, Munich, Lisbon, Geneva, Toulouse, Florence, Rome and many others.

His roles at the Israeli Opera:
La Rondine: Prunier (2015)
La bohème: Rodolfo (2008)
L'elisir d'amore community production: Nemorino (2006)
Yevgeny Onegin: Lensky (2003)