Krzysztof Kolberger in 1972 graduated from the acting department of the State Higher School of Theater in Warsaw. In the same year he played in his first graduated play "Acts" according to Stanisław Wyspiański, Stanisław Ignacy Witkiewicz and Sławomir Mrożek directed by Jerzy Jarocki.

After graduating, he was offered a job in Ignacy Gogolewski's Silesian Theater in Katowice. He remained, however, only a year, and then he permanently moved to Warsaw and became an actor of the National Theater. Kolberger's acting was then described by the critics as very passionate and passionate, often painfully sincere and full of enthusiasm.

From 1988 to 2000, he was associated with the stage of the Ateneum Theater. On this stage, Kolberger played, among others in performances staged by Gustaw Holoubek. At the beginning of the 90s, the actor also directed. He exhibited Wojciech Bogusławski's "Cracovians and highlanders" at the Wrocław Opera, later transferred to the Grand Theater in Warsaw. Sam played the role of Bardos in the play.

Since then, Kolberger often directed in the musical theater, admitting that he is interested in the lighter, comedic repertoire.

Krzysztof Kolberger was considered by many people not only as an outstanding actor and director, but also as a great person and a model worth following. During martial law, he was a member of the Primate's Committee for Assistance to Interned, he joined the boycott of television, regularly recited poems in churches, and, as part of cooperation with the Archdiocese Museum, he presented texts forbidden to be shown in theater and television throughout Poland.