Born in Tübingen in 1976. In 1996 he graduated from the Elisabeth-von-Thadden-Gymnasium, Heidelberg. From 1997 to 1999 he was assistant to the stage and costumer designer Hans-Martin Scholder in Berlin. He worked in the fields of opera and dance theater at the Staatstheater Darmstadt and at the Staatsoper Hamburg. From 1999 to 2001 he studied stage and costume design at the Staatliche Akademie der Bildenden Künste Stuttgart, under Prof. Jürgen Rose; in 2001 he had an internship with David Hockney in Los Angeles. Since 2001 he has studied stage and costume design at the Staatlichen Akademie der bildenden Künste Stuttgart under Prof. Martin Zehetgruber.
His own works are such as Morton Morton Morton (UA 2004) at Theater am Neumarkt, Nachts, wenn der Tag beginnt (UA 2005) at Theater Rampe in Stuttgart, as well as Der Fall des Hauses Usher at the Neuköllner Oper in Berlin on which he got the award of “Raum des Jahres” (“Room of the Year”) by Die Deutsche Bühne; assistance at Passaggio (2005) at Nationaltheater Mannheim. Sebastian Hannak is scholarship holder at the Akademie Musiktheater heute der Deutschen Bank.
Infinito Nero (UA 2004), Vanitas (UA 2004), Last Desire (UA 2004) und fremd (UA 2006) at Forum Neues Musiktheater.