Adam Gregory was born in Ohio, and was discovered there by his manager Lori. In 2007, he took a leave of absence from university and moved to Los Angeles. There, he got jobs at Abercrombie & Fitch and the YMCA. Then, he signed with Wendi Green at Abrams Artist Agency, Ford Models and began studies with Master Coach, John Kirby. That year, he also got a couple of supporting roles on television, but his main source of income was modeling.
In 2008, he landed supporting roles in the films Seventeen, Hannah Montana Movie and Hardbreakers, and in the CW series "90210".