<P> Lowe, Le Mesurier, Dunn, Lavender and Pertwee, and Jones' van, appeared in character at the finish of the 1974 London to Brighton Veteran Car Run . </P> <P> Lowe, Le Mesurier and Laurie again made a cameo appearance as their Dad's Army characters in the 1977 Morecambe and Wise Christmas Special . As Elton John is following incomprehensible instructions to find the BBC studios, he encounters them in a steam room . On leaving, Mainwaring calls him a "stupid boy". </P> <P> A pilot episode for an American remake called The Rear Guard was produced by ABC and broadcast on 10 August 1976, based on the episode "The Deadly Attachment". However, it failed to make it past the pilot stage . </P> <P> Lowe and Le Mesurier made a final appearance in Dad's Army garb for a 1982 television commercial advertising Wispa chocolate bars . </P>

How many of dad's army cast are alive