Andrzej Mastalerz is a Polish actor and director. He completed his studies at the Ludwik Solski State Theatre School in Wroclaw. After graduation, he joined the Stefan Jaracz Theater in Lodz, where he debuted in the play "Loze" by Klaus Rifbjerg. He spent eight seasons there and achieved success in the role of Antos in the play "Zbrodnia z premedytacja" by Witold Gombrowicz. He also performed at the Studio Theater in Warsaw. His movie debut was in A Short Film About Killing (1988). His notable roles were in Nad rzeka, której nie ma (1991) and Kawalerskie zycie na obczyznie (1992). He is also a respected lecturer at the Warsaw Film School.