 Guest stars include Pat Heywood, Prunella Scales and Mike Grady as well as Burt Kwouk and Saeed Jaffrey.The show was directed by both Gerry Mill and Mike Vardy and location sequences were mainly filmed in and around South London.The show was offered a second series; however writer Terence Frisby did not feel he had enough ideas for the series to continue, so the show ended with the thirteenth and final episode.