HomePeople Biography and filmographyGrega Mastnak Biography unavailable on TMDB. Movies (5)TV shows (0) Movies (5) Enfant Terrible2026 · Director, Writer Prince Ki-ki-do: On the Run2018 · Director, Writer Discovering the World2017 · Writer, Director Prince Ki Ki Do: Tea cupPrince Ki Ki Do: Tea cup2016 · Director The BeezesThe Beezes2002 · Writer, Director TV shows (0) No credits available.