in the 2016 Dad's Army film, providing a link with the original series. After Dad's Army After Dad's Army, Lavender returned to the theatre, including a role in a production of Shakespeare's The Merchant of Venice starring Dustin Hoffman. Between 1971 and 1973 Lavender joined Dad's Army colleague Arthur Lowe on the BBC radio comedy Parsley Sidings. From 1982 to 1983, he was in the BBC radio comedy series, a spin-off from Dad's Army called It Sticks Out Half a Mile. Lavender also appeared in films and television series, one of which (Mr Big, 1977) featured him starring alongside Peter Jones and Prunella Scales. During the 1970s he appeared as a supporting actor in a number of British 'low farce' films, including one Carry On film – Carry On Behind (1975). He was reunited with producer David Croft for the television series Come Back Mrs. Noah (1977–78, co-written by Croft with Jeremy Lloyd), though it was unsuccessful. A revival of The Glums (1978–79), at first as part of a Bruce Forsyth variety series, proved rather more satisfactory, being adapted from scripts for the 1950s radio series Take It From Here that were written by Frank Muir and Denis Norden. 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. In 2001 Lavender joined the BBC soap opera EastEnders, playing the role of Derek Harkinson, a gay friend of Pauline Fowler. He continued in EastEnders for four years, with storylines mainly involving the Fowler family, before leaving the serial in 2005. On 4 November 2016, it was announced that Lavender would make a brief return to the show. Lavender then toured with The Rocky Horror Show musical, playing the Narrator. He also played the part of a patient in the 5 May 2007 episode of Casualty