Karl M. Sibelius

He appeared in classical acting roles (Hamlet, Tellheim in Minna von Barnhelm), in Johann Nestroy's Höllenangst [de] as "Wendelin", but also in musicals and operettas (among others as "Frankn'Furter" in The Rocky Horror Show) and in operas.

[5] In addition, he gave song recitals ("Ich find Schlager toll", "Schiff der Träume", "Struwwelpeter").

In between, he repeatedly made guest appearances on stages in Vienna (Serapionstheater [de], Schauspielhaus Wien, Theater in der Josefstadt) and Germany (Münchner Volkstheater, Staatstheater Kassel, Bonn, Augsburg, Stadttheater Konstanz).

[6] In Linz, he appeared in the 2007/08 season as Adam Schaf in Georg Kreisler's biographical song recital and as head waiter "Leopold" in the operetta Im weißen Rößl, in June and July 2008 at the Bad Leonfeldner Sommerfestspiele in musical Cabaret as a conferencier under the artistic direction of Thomas Kerbl.

The reasons given by Mayor Wolfram Leibe [de] included "dramatic mismanagement" and a deficit of over 3 million euros since Karl M. Sibelius took office.

[13] Sibelius was active in the city cultural advisory board Linz and committed himself to the Aids-Hilfe [de] Upper Austria.