Lavender then appeared in several other TV comedy shows during the 1980s, including two episodes of "Yes Minister", as Richard Cartwright, and a lead role in the short-lived "The Hello Goodbye Man" (1984), as the inept salesman Denis Ailing. He also appeared on ITV's television game show "Cluedo" (1990), based on the board game. During the 1990s Lavender continued to appear occasionally in television comedy roles including a bit-part as a burglar alarm salesman in the BBC sitcom "Keeping Up Appearances". He made an appearance in "Goodnight Sweetheart" as two different parallel universe versions of the time-travelling lead character's son Michael. He also provided the lead voice of BBC children's animation "PC Pinkerton" in 1988.