Mark Jefferson (born April 11, 1975) is a photography teacher at Blackwell Academy and the main antagonist of Life is Strange. As a famous photographer and a widely recognized artist across America, he gained popularity during the ’90s. Introduced as the cool and nice teacher who is greatly admired by his students, including Max Caulfield, he is later revealed to be the true main antagonist in Life is Strange. Throughout the game, Jefferson was either directly or indirectly responsible for the (potential) deaths of a total of seven characters.