Graduated in 1984 at the Ljubljana National Academy of Theatre, Film, Radio and Television, Završan did a specialisation course at the International School of Theatre, Mime and Movement "Jacques Lecoq" of Paris in 1987. He is also a scriptwriter, choreographer, singer, dance-theatre and plays’ director. He directed documentaries and didactic movies. He was an “alternative theatre” teacher at the Ljubljana Theatre Academy and now also at the Ljubljana Dance Academy.

Among his more memorable interpretations: In the role of Branko (main and almost only actor on the screen) in the movie “TIR” by Alberto Fasulo (Awarded for the best film in Rom film festival – Golden Marc Aurelio 2013). In the role of “Deminer” in the movie “No Man’s Land” by Tanis Tanović and set in 1993 during the Serb-Bosnian war (Awarded for the best screenplay at Cannes 2001 and Oscar for the foreign film). In the role of “Tragedian” in the film of the English comedian writer Tom Stoppard "Rosenkrantz and Guildenstern are dead”, Golden Lion in Venice 1990.