Since 2000, he has been associated with the National Theater in Warsaw, where he can be seen in many of the titles staged there.
He has starred in such films as "Leiden," directed by Tomasz Konecki, "Walesa. Man of Hope" by Andrzej Wajda, or Władysław Pasikowski's film "The Courier" - where he played one of the main characters. 2019 saw the premiere of the films "Pilsudski", directed by Michal Rosa, and "Legions", directed by Dariusz Gajewski, in which he played one of the roles. On the small screen, he can be seen in the series "Ultraviolet", "Blonde" and "Pact" in HBO production, among others.
In 2021, the film "Master" directed by Maciej Barczewski premiered, in which he played the role of a ruthless SS reporting non-commissioned officer.
In 2022, the series "Vote of No Confidence," directed by Ł. Palkowski, based on the book by Remigiusz Mrożek, in which Grzegorz played one of the leading roles; and "Bejbis "directed by A. Saramonowicz, in which he played the leading male role, premiered.