Stefanos Kosmidis was born in Athens. He graduated from the National Theatre Drama School in 1996.
He has been working as an actor in theatrical and cinema productions since 1994.
His works for the cinema:
(2007-09) ''IQ73'', web series: concept, scenario and directing
(2010) ''Egoiste'', short film: concept, scenario and directing (production: Texnis, texnis.com).
''Egoiste'' won the Northern Lights Emerging Talent Award at the Alaska International Film Awards in 2011.
(2012) ''Fertilizers plant'', feature film: scenario and directing (production: Texnis, texnis.com)
(2011-12) ''The Intruders'', web series: scenario and directing.
(2013) ''Forest'', ongoing short film: directing.
In addition, he has worked as an actor for the cinema with Yannis Xanthopoulos and Alexandros Avranas,
and as an assistant director with Alexandros Avranas for the documentary about the life of Theodoros Angelopoulos, in the occasion of his last film