Piotr Aleksander Adamczyk (Polish: [ˈpjɔtraˈdamt͡ʂɨk]; born March 21, 1972) is a Polish film, television, voice, and theatre actor. He is known for portraying pianist and composer Frédéric Chopin in the biographical film Chopin: Desire for Love (2002), Pope John Paul II in the TV miniseries Karol: A Man Who Became Pope (2005) and its sequel Karol: The Pope, The Man (2006), Tomas in the Marvel Cinematic Universe Disney+ series Hawkeye (2021), and Sergei Nikulov in the Apple TV+ original science fiction space drama series For All Mankind (2021–2024).