Mikołaj Zalasiński graduated with honors from the Academy of Music in Katowice and is a winner of several vocal competitions, including the Adam Didur Opera Singers' Competition. He received the Jan Kiepura Award as Best Opera Singer (2009) and the Amber Ring for Un ballo in maschera. He is acclaimed for his interpretations of Verdi and verismo roles, including Macbeth, Nabucco, Rigoletto, Scarpia, Amonasro, Germont, Wotan, and Barnaba. He has performed at Teatro La Fenice in Venice, Teatro Regio in Turin, Opernhaus Zürich, Teatro Real in Madrid, Maggio Musicale Fiorentino, Bayerische Staatsoper, New Israeli Opera, and the Polish National Opera. He has collaborated with renowned conductors such as Muti, Gatti, Gergiev, Renzetti, Battistoni, Wellber, Callegari, Viotti, Arrivabeni, and Bisanti.