Petras was a student of Juozas Miltinis, the most famous theatrical director in Lithuania. Petras, himself, is an acclaimed Lithuanian actor who performed with the Panevezys, and Sauliu Theaters, as well as the Vilnius Youth State Theater. As a testament to his acting ability, Petras was bestowed with numerous best actor awards from theatrical festivals throughout Europe. During his career in Lithuania and the Soviet Union, Petras has appeared in over 20 feature films. Now, living in the United States, Petras continues to promote Lithuanian culture in the Lithuanian-American community through the performing arts.