He was a member of Zagreb Youths Theatre school of acting from 1984 to 1996, and during that period he took part in over 50 professional and amateur projects, mainly as actor. He also played in many co-production foreign movies. In 1995, he formed Schmrtz Teatar as an independent theatre group of young people interested in theatre, modern primitivism, alternative lifestyles and subcultural activities as well as in recycling of the old ideas about modernity and political influence of theatre. In less than five years they have produced over 120 plays, performances, shows, concerts, happenings, installations or actions. In 2000 they drastically reduced their membership and changed their name into Nova Grupa, but their ideology of civil politics and independent "do it yourself" lifestyle stays the same. This group is very well known in the circuit of student festivals and has performed on many of those across the world.
Theater work
As a part of ATTACKs performing arts team he founded FAKI with intention to promote, distribute and, generally, help independent theatre groups, mostly those who deal with street, student, low budget or alternative theatre. He was also one of the founders of K.R.A.D.U. and NGO -'Teatar Studentima' both highly respected annual festivals in their fields. A special aspect of his theatre involvement is work with people with disabilities, where he was key person in He has directed many plays with them and even won some awards at major festivals. He also sings and plays in several musical bands, most notably in cabaret punk bandZvonko & Gradski Ured za Kulturu, avant/post noise bandTena Novak,experimental audio/visual project Dada Jihad. and art rock bandRadost!.
Activism
Mario Kovač is an active member of numerous grass-root movements in Zagreb and Croatia, often stepping up as both public persona and director-performer, taking risks and exposing himself. He was a victim of hate crime in first Zagreb Pride even before he had a chance to get to the stage. He took part in Pravo na Grad actions, as well as those initiated by Zagreb is OURS. In 2020 he is joining Croatian left-green coalition We can! as the lead candidate of the list for Diaspora.
