A TR Warszawa actress. Graduate of The Leon Schiller National Film, Television and Theatre School in Łódź. She debuted with the role of Witch in Macbeth directed by Mariusz Grzegorzek (The Stefan Jaracz Theatre in Łódź, 2008). Right after graduation she starred in the opera La Bohéme dir. by Agata Duda-Gracz (The Stanisław Moniuszko Grand Theatre in Poznań, 2010). In 2010-2012 she was associated with The Stefan Jaracz Theatre in Łódź, where she could be seen in the performances: The Clean House dir. by Mariusz Grzegorzek (2009), Barbello, of Dogs and Children dir. by Anna Augustynowicz (2011) and Richard III dir. by Grzegorz Wiśniewski (2012), among others. She is an author of dramaturgy, script, music and a director of To pewnie wina krajobrazu [literally: It is certainly the fault of the landscape]- a performance produced within the frame of Young Poland – a project organized by the Ministry of Culture and National Heritage. Wasilewska guest starred in many theatres including: IMKA Theatre (Our Town dir. by Szymon Kaczmarek, 2011), New Theatre in Warsaw (Sexual Lives of Savages dir. by Krzysztof Garbaczewski, 2011), TR Warszawa (The Bat dir. by Kornél Mundruczó, 2012), Polish Theatre in Poznań (Balladyna, dir. by Krzysztof Garbaczewski, 2013) and The Helena Modrzejewska National Stary Theatre in Cracow (The Kings of Poland dir. by Krzysztof Garbaczewski, 2013; Being Steve Jobs dir. by Marcin Liber, 2013). In 2013 she was employed by The Helena Modrzejewska National Stary Theatre in Cracow, where she played in The Road to Damascus dir. by Jan Klata (2013), among others. Since 2014 she has been a member of TR Warszawa ensemble. In TR she has created roles for many performances, including: The Second Woman dir. by Grzegorz Jarzyna (2014), The Martyrs dir. by Grzegorz Jarzyna (2015), The Possibility of an Island dir. by Magda Szpecht (2015), Robert Robur dir. by Krzysztof Garbaczewski (2016), Puppenhaus. Treatment dir. by Jędrzej Piaskowski (2017), My Struggle dir. by Michał Borczuch (2017), California / Grace Slick dir. by René Pollesch (2017), Pieces of a Woman dir. by Kornél Mundruczó (2018), 2020: The Tempest dir. by Grzegorz Jarzyna (2020), an imperfect utopia dir. by Noémi Ola Berkowitz (2022), sweet & romantic dir. by Wera Makowskx i Jakub Zalasa (2023).

Her credits include many film productions: Druciki [literally: Thin Wires] dir. by Aleksandra Gowin and Ireneusz Grzyb (2009), Frozen Stories (2011), Fawns dir. by Jan Kwieciński (2011), Kebab & Horoscope dir. by Grzegorz Jaroszuk (2013), Dżej Dżej dir. by Maciej Pisarek (2014), Romantik dir. by Mateusz Pisarek (2016), Tenderness dir. by Wacław Miklaszewski (2016), The Art of Loving dir. by Maria Sadowska (2017), The Heart of Love dir. by Łukasz Ronduda (2017), Jerry dir. by Roman Przylipiak (2017), Beyond Words dir. by Urszula Antoniak (2017), Zabawa zabawa [Party Party] dir. by Kinga Dębska (2018), Reisefiber dir. by Mateusz Bednarkiewicz (2019), Icarus. The Legend of Mietek Kosz dir. by Maciej Pieprzyca (2019), and TV series, including  leads  in Nieobecni [The Absentees] dir. by Bartosz Konopka (2020).

Justyna Wasilewska has been awarded many prizes and distinctions, including: Grand Prix of the Song Interpretation Contest at the 30^th Stage Song Review in Wrocław (2009), honorable mention and audience award at the 27^th Drama Schools’ Festival in Łódź (2009), honorable mention in the best actress category for the role of Myrtle Webb in Our Town at the 52^nd Kalisz Theatre Meetings (2012), Grand Prix of the 53^rd Kalisz Theatre Meetings for her role in The Bat (2013), Prize of the Marshal of the Łódź Voivodeship for the artistic season  2012/2013, Talent Trójki Award (2014), honorable mention for her role in the Robert Robur performance at the 57^th Kalisz Theatre Meetings (2017), a Piotr Łazarkiewicz Award for Young Talents at the 18^th Polish Film Festival in Los Angeles (2017), best actress prize awarded by Dziennik Teatralny for her role in Puppenhaus. Treatment at the 19^th National Festival of Directing “Interpretations” in Katowice (2018), Individual Actress Awards for her role in Puppenhaus. Treatment at the 24^th National Competition for Staging Contemporary Polish Plays (2018), First Award for Best Actress for the role in Pieces of a Woman at the 12^th Divine Comedy International Theatre Festival in Cracow (2019). She is also a laureate of the Aleksander Zelwerowicz Best Actress Award in the 2018/2019 season for the role of Maja in Pieces of a Woman, directed by Kornél Mundruczó.