A dual citizen of the United States and Canada, Gregory began acting at the age of six. He appeared in the movie Andre (1994) before landing his first starring role in the fantasy Leapin' Leprechauns (1995) followed by the sequel Spellbreaker: Secret of the Leprechauns (1996). He also starred in The Adventures of Captain Zoom in Outer Space (1995) (TV).

Older brother of Douglas Smith, Son of Maurice Smith.

Has two other siblings named Andrew and one sister, Samantha

His hobbies are: acting, rock climbing, soccer, rollerblading, and photography.

He began seriously acting at the age of 6.

Dual citizen of the U.S. and Canada.

His first gig was at the age of 14 months when he was in a Tide commercial.

Has 2 younger brothers, Andrew & Douglas and a younger sister, Samantha

During the making of "American Outlaws" (2001) Smith, the youngest of the cast, got the nickname 'Secret Weapon' from the wranglers, for his rare talent to handle guns.

Parents: Maurice and Terrea Smith

His parents separated when he was 12 years old

Is allergic to cats

He broke his collar bone while skiing