Popsugar Celebrity Cobra Kai How Old Is the Cobra Kai Cast? FYI, Some of the Cobra Kai Cast Members Are Actually Teenagers Themselves 4 January 2021 by Corinne Sullivan View On One Page Photo 6 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 6 How Old Is Gianni Decenzo, aka Demetri? 19 Previous Next Start Slideshow Cobra KaiTV