Sebastian was born on May 31st, 1962. He has been a credited actor since the 2001 film Der Tunnel.
Sebastian is a dependable supporting cast member. He has appeared in five films including: the 2013 action film A Good Day to Die Hard as the character Komarov, the 2011 action movie Unknown playing Professor Leo Bressler and the 2006 drama release Das Leben der Anderen cast as Georg Dreyman.
His most commercially successful project to date has been the 2013 action film A Good Day to Die Hard, which brought in $67,000,000 at the box office.