Hertford began his career at an early age, most notably with his appearance in Steven Spielberg's
Jurassic Park. In 2009 and 2010, he recurred as Ross on the FOX comedy
Raising Hope and as the tyrannical rival choreographer Dakota Stanley during the first season of
Glee. Other TV credits include
Psych, various appearances on
Conan and as the voice of Cadet Kryze in
Star Wars: The Clone Wars. In 2009, Hertford co-founded the independent film company Sneak Attack with director Ryan Darst. Their American
New Wave short and full-length films (written by Hertford) have screened at festivals in the US and Europe, including the premiere of the revenge short film
Wildlife at the
Cannes Film Festival (2015) in the "Short Film Corner", which is not affiliated with the Festival de Cannes Official Short Film Competition or with the main Cannes Film Festival. The "Short Film Corner" film market screens all entries that pay the required entry fee. The production was shot all on location in rural Utah with co-stars
Jon Heder and
Lauren Lapkus. It was scored by
Joshua James. ==Theatre==