Home People Mark L. Young Mark L. Young shows Mark L. Young shows Mark L. Young TV Shows (10) Filthy Rich (1969) Ten Days in the Valley (2017) As PJ, He was 26 years old Code Black (2015) As Justin Keller, He was 24 years old The Inbetweeners (2012) As Neil Sutherland, He was 21 years old Dexter (2006) As Jeremy Downs, He was 15 years old Heroes (2006) As Jeremy Greer, He was 15 years old Criminal Minds (2005) As Owen Porter, He was 14 years old The Comeback (2005) As Tyler, He was 14 years old Veronica Mars (2004) As Jimmy, He was 13 years old CSI: Miami (2002) He was 11 years old
