Gregg was called to the Bar in 2015.
Gregg was born and raised in Tasmania. He is a graduate of the University of Tasmania.
Prior to being called to the Bar, Gregg was a solicitor for 20 years specialising in Family Law and Child Protection. He is an accredited Independent Children’s Lawyer. Gregg also works in the areas of family violence and administrative law.
Gregg was noted in Doyles Guide as a leading Family Law Barrister in 2016, his first full year at the Bar.