In September 1999, he moved to New York City to study at the School for Film and Television in Manhattan.
Holroyd received a small role in the film The Program (for which he was uncredited) and made a guest appearance on the television show Matlock, playing a teenager (both in 1993).
He left the show to pursue other acting opportunities and was replaced by soap opera actor Roger Howarth.
He was also featured in the second season of Dirty Sexy Money as Patrick Darling's brother-in-law Chase Alexander.
They became engaged in December 2006 in Paris and married on November 17, 2007 at the French Huguenot Church in Charleston, South Carolina.