Jameson was born in Holyoke, Massachusetts on January 17, 1991. Due to his dad's profession, Jameson was able to live in many places. After living in Massachusetts, Florida, Connecticut, and Ohio, his family settled in Atlanta, Georgia where Jameson found his passion for acting. He attended Atlanta Workshop Players as a full time student and at AWP's summer Camp Destiny. After performing for his elementary and middle school, Jameson attended North Springs High School's Performing Arts Magnet program in Atlanta, Georgia. In 2006 Jameson, along with his brother and others from North Springs High School performed at the Edinburgh Fringe Festival in Edinburgh, Scotland.During a trip to Los Angeles with AWP's Hollywood Bound program, Jameson was invited to work in Los Angeles. Jameson also is a member of the band, Jameson Moss and the Thrillers. When not performing Jameson takes classes in music at Santa Monica College.