He is best known for his portrayal of Bubbles and co-writer of the cult classic television program, films and stage production Trailer Park Boys.

Before becoming involved in Trailer Park Boys, he was a guitarist in the rock band Sandbox, and signed a record deal with EMI in Canada, and Nettwerk in the United States.

A Trailer Park Boys episode also features Smith's character Bubbles playing the 1977 Rush track "Closer to the Heart" with Alex Lifeson.

Bubbles, along with Ricky and Julian, hosted the 2006 and the 2007 East Coast Music Awards, in Charlottetown, Prince Edward Island and Halifax, Nova Scotia respectively.

[3] In 2010, Smith reunited with many of his former Trailer Park Boys castmates in the new series The Drunk and On Drugs Happy Fun Time Hour.

The 6-episode series centers on the idea that a powerful narcotic derived from local berries transforms the cast, leading them to believe they are the characters they're playing, including pirates, superheroes, a mafia family and drug dealers.

In the spring of 2013, Smith along with his Trailer Park Boys cohorts Wells and Tremblay started Swearnet, an internet-based television network that is entirely uncensored.

For a short time in 2006, Smith was engaged to actress Nichole Hiltz after meeting on the set of Trailer Park Boys: The Movie.