He's coming from and acting family. Actors from this family are: his father Maciej Damięcki, younger sister Matylda Damięcka, uncle Damian Damięcki, and cousin Grzegorz Damięcki.
He has appeared in more than 30 films and television shows since 1991.
- 2014: Captain America: The Winter Soldier - Sam Wilson/Falcon
- 2015: Avengers: Age of Ultron - Sam Wilson/Falcon
- 1987-1990: DuckTales (old Polish dubbing)
- 1988-1991: The New Adventures of Winnie the Pooh - Christopher Robin
- Damięcki started in Polish version on TV show "Dancing with the Stars"; he was eliminated in the semi-finals, taking third position.
- In August 2009, along with five friends, he embarked on a journey to Siberia. For 63 days, with 3 Mercedes G underwent a 25,000 km. Mercedes G, owned by actor who faced difficulties tundra and taiga, was put on the auction of the Great Orchestra of Christmas Charity (GOCC, Polish Wielka Orkiestra Świątecznej Pomocy, WOŚP).