He is a member of the German Academy of Presentational Arts and an honorary member of the Berlin National Theatre company.
He has given many public readings, focusing in particular on the writings of Elias Canetti, Karl Kraus und Heinrich Heine.
He is a holder of the Austrian Decoration for Science and Art (First class) and of the Styrian Cross of Honour (Gold).
In 1993 Hollmann accepted a professorship in Theatre Direction at the University of Music and Performing Arts in Frankfurt am Main., heading up the Faculty of Performing Arts as dean between 1998 and 2003.
He has worked as a university lecturer and has a doctorate in jurisprudence.