For the first five years he appeared on Trailer Park Boys Roach continued to work as a regional sales manager for Sparkling Springs, a bottled water company. He would film Trailer Park Boys on his vacation time, but in July 2004 he quit his job (which he had held since 1993) in order to concentrate on acting, a decision he thought was risky, but worth it. While not shooting the show, he goes across the country with John Dunsworth at comedy clubs and other music events as a stand-up/improv act portraying Jim Lahey and Randy in the manner of the characters. He also appeared on a commercial for the telephone service Vonage. When asked what it was like appearing shirtless in every episode, Pat replied that it was uncomfortable at first, but after everyone in Canada has seen you, "what the Hell."
He is married to Candyce, and together they have two children, Rebecca and Cody, who, because of their young ages (ten and eight respectively, as of 2008), are forbidden to watch Trailer Park Boys.
He was born in Branch, a community in Newfoundland, but grew up in Dartmouth, Nova Scotia.