Hosea Ratschiller is an Austrian actor, comedian, columnist, satirist, presenter and radio producer. He will moderate this years opening show. 

Ratschiller dropped out of his studies in history, philosophy and theater in Vienna. He then served his civil service in the sanatorium of the Israelitische Kultusgemeinde. Since 2000, Ratschiller has worked at radio FM4 of the Austrian public broadcaster ORF and since 2009 also for Radio Ö1.

Since 2017, he has presented the program Pratersterne on ORF as part of the television program series DIE.NACHT.