Kostas Triantafyllopoulos (Greek: Κώστας Τριανταφυλλόπουλος; 8 February 1956 – 21 August 2021) was a Greek actor. After studying at the Theodosiadis Drama School of Athens, he graduated in 1977 and played a wide variety of roles on stage from Greek tragedy, Aristophanes and Shakespeare to contemporary American drama (Eugene O'Neill, Arthur Miller, Tennessee Williams, Joyce Carol Oates, Thornton Wilder, Sam Shepard). He performed frequently at the National Theatre of Greece, the National Theatre of Northern Greece and at many other major Greek theatres, appearing in both classics and new works. His most notable stage roles include: Joe Keller in All My Sons by Arthur Miller, Kilroy in Camino Real by Tennessee Williams, Erie Smith in Hughie by Eugene O'Neill, Frank Gulick in Tone Clusters by Joyce Carol Oates, Juror #3 in 12 Angry Men by Reginald Rose, Old Man in Fool for Love by Sam Shepard, Joseph Garcin in No Exit by Jean-Paul Sartre, Launce in The Two Gent...
Darling, Let's Get Naked!
1984
Paperboat
2006
Welcome to 'All Saints
2011
The Island
2009
Too Late Tomorrow
2002
The little mouse who wanted to touch a little star
2007
Froutopia
1985
Fleas in the ears
2015
O agalitsas: Ena exagomeno koroido
1985
The Woman Is... A Tough Person
2005
The Road
2005
Martha: To hroniko enos viasmou
1986
Stohos i ekdikisi
1986
Adelfi mou... agapi mou
1986
Ζήτημα χρόνου
1989
Lefteris
1993
Ταξί αγάπη μου
1986