Greg O'Gallagher grew up in Toronto, Canada. His father, Michael O'Gallagher, was a real estate mogul, who passed away when Gregory was 11 years old. His mother, Alanne O'Gallagher, raised Gregory and his three brothers and one sister. Determined to take control of his life, Gregory quickly discovered his passion; fitness and martial arts.

At 18 years old, Gregory went to University of Guelph in Canada to study business and marketing. After dropping out of school after a year, Gregory launched an internet fitness brand called Kinobody. By 2016, Kinobody became one of the leading fitness programs in the world with over one hundred thousand customers.

After creating a massive shift in the fitness world and amassing a very large social media following, Gregory decided to pursue his next passion, film. In just a few months, Gregory has already acted and executive produced in two feature films.

Gregory has been studying very closely with Canadian actor and acting coach, Richard Chevolleau, to continue to develop his acting abilities. Gregory O'Gallagher is excited to continue to act and executive produce in more films and has teamed up with Hollywood manager and powerhouse Henry Penzi.