Worked as a carpenter and motorcycle mechanic before being cast in Queer as Folk (2000).
Played "Valentine Xavier" in Tennessee Williams' "Orpheus Descending", in Los Angeles, January-February 2010. [January 2010]
Attended South West Dekalb High School and The Lovett School.
Has an older sister and a younger brother.
In 2007, two years after Queer as Folk (2000) went off the air, Harold and Randy Harrison's characters, "Brian" and "Justin", won an only poll sponsored by the website Gay.com to choose TV's "Favorite Gay Couple". They won in a landslide, with 35% of the on-line vote.