Wolfgang Gruber was born in Graz, Austria. He studied in Vienna and Graz. He had engagements as Assistant Director at opera companies in Graz and Essen. Noteworthy is his long-term cooperation with stage director Guy Joosten (Amsterdam, Antwerp/Ghent, Barcelona, Brussels, Essen, Oviedo, Marseille, St. Gallen). Gruber assisted Frank Castorf for a.o. the Ring-Cycle at Bayreuth Festival 2013 – 2017. He assisted Patrice Chereau for The House of Death (Vienna Festival, Festival Aix-en-Provence, Holland-Festival) and Jonathan Meese for Mondparsifal at Vienna Festival and Berlin Festival. Further, he collaborated with Tatjana Gürbaca (Ring-Cycle in Vienna, Rigoletto in Bogota etc.) Peter Konwitschny (e.g. Falstaff in Graz), Michael Sturminger (Ariadne auf Naxos in Taipei), Dietrich W. Hilsdorf, Richard Jones, Anselm Weber, and others. His own theatre projects include Das Traumfresserchen and Kiss me, Kate at Aalto-Musiktheater Essen. The last production – The Maids, by Jean Gent – in Essen had to be stopped due to Corona. Finally, Gruber realized the 2016 scenic setting for Mozart in Egypt and in 2018 did the same for Mozart Goes Royal (IOA, Opera Ballet Vlaanderen).