Kostja Ullmann is a German actor, best known for his leading role in the awardwinning coming of age drama Sommersturm which gained a lot of praise throughout Europe.
Ullmann was born in Hamburg. He entered the stage at the age of eleven and performed at Hamburgs ErnstDeutschTheater and Winterhuder Fhrhaus. In 1998, he made his TV debut in a minor part in the crime series Alphateam.
Source: Wikipedia