Andrew's first experience performing was as Pacman singing "Pacman Fever" at a second grade talent show. His best friend at the time (who was the Blue Ghost) and he, pretty much swept the elementary school contest. Also, Andrew's older brother, Timothy Ralston, who as a child idolized Steven Spielberg, cast him in most of his short films using his super 8 camera. Was a fine arts major before switching to theatre. He is casted as Jim McNeile in Lethal Weapon.