Son of director Marek Koterski and Iwona Ciesielska.

[1] He is known for the roles in the films of his father, in which he played Sylwuś, son of Adam Miauczyński Dzień świra (Day of the Wacko).

He participated in the production of the morning radio show Antyradio, where he was reading blogs of prominent politicians inter alia Renata Beger and Wojciech Wierzejski.

He appeared in third season of the show Jak oni śpiewają (How They Sing).

On April 12, 2008 he has been eliminated from the show in favour of Aneta Zając and Grażyna Szapołowska.