Mark is a 17 year old boy who lives in Mandela county and attends Mandela highschool with his best friend Cesar Torres who he's known since third grade. Mark tends to be very cautious and paranoid since Alternates came around and he was already called "weird" at school. Mark had always been shy. Mark was overly paranoid about alternates and he became a but cold and rude. Mark has one sibling, Sarah Heathcliff. Mark always has a gun on him. Mark was very Christian but yet he still cursed a lot.