Gianni DeCenzo, an American television actor who is widely recognized for his portrayal of Demetri on the martial arts action-drama series "Cobra Kai". He also cast on "Coop and Cami Ask the World" and "100 Things to Do Before High School". He began his career by taking unpaid roles in student films. Gianni has also appeared in a commercial advertisement for an insurance company. In the ad, he acted alongside an elephant named Suzy. In recent news, Gianni DeCenzo talks Demetri's arc in 'Cobra Kai,' filming that arm-breaking scene, and season 4 hopes.