Larry is the resident of a trailer next door to the studio where Peter records his anti-smoking commercials in "Secondhand Spoke".
When Peter complains to Mr. Stone about someone being in his dressing room trailer, Mr. Stone points out that they don't have trailers and Peter made the mistake of being in the trailer park next door. Peter accepts this as an explanation for the sex that accompanied the trailer visit. When Peter is fired from the ad campaign, Larry comes over to the studio to comfort him.