[1] O'Gorman earned a black belt in karate by the age of ten,[2] and attended Rangitoto College in Auckland.

[3] In April 2011 O'Gorman was cast as the Dwarf Fili in Peter Jackson's three-part film adaptation of The Hobbit.

His career took off in the middle of the decade, when he won the role of Harry Martin in popular New Zealand soap opera Shortland Street and appeared in locally-shot shows Hercules: The Legendary Journeys and Xena: Warrior Princess multiple times.

He has made multiple guest appearances on several television shows including The Cult, Go Girls and Legend of the Seeker.

[10] He was almost broke, but was soon discovered by his friend's agent and thus began to receive more work, dividing his time among painting, photography and acting.

[10] Preferring to dress and set up shoots himself, the models for this gallery included other cast members from The Hobbit: An Unexpected Journey[10] and The Almighty Johnsons.