Mason is trained in the Meisner technique and is known for roles in films such as 'Green Room', 'Benchwarmers', and 'Tenacious D: The Pick Of Destiny'. He has also worked on television, playing the role of "Skylar Sanford" in 'Leverage'.

Mason is the oldest of five children. In 2006, his family moved to California where Mason was able to have more opportunity for his interest in acting. He began his career by playing 'Charlie the catcher' in Benchwarmers.