Billy Mitchell (EastEnders) revealed in 2006 that the role was extended by "coincidence and chance": "I was offered four episodes and here I am, about 800 later. [...] Ross Kemp (Grant) said that he was leaving, and there was a gap in the Mitchell family, so they brought me back to do stuff towards his leaving. After that they offered me a year." Billy was reintroduced in 1999, making recurring appearances. He was involved in the leaving storyline of Grant Mitchell in October 1999, before returning later in the year as a regular character. When Billy was first introduced, he was depicted as
Ross Kemp in Afghanistan "within inches". In filming the second series, Kemp runs into a possible minefield. The show was praised for the closeness and realism of the battle footage, and is believed to be the first documentary of its kind filmed in high definition. Kemp expressed that the a main motivation for the series was to hear from the soldiers who generally don't have a voice compared to other public workers. Kemp stated: "I've got many friends who are in the services, but you never really hear a squaddie giving his point of view. I'd never heard one talk publicly and I wanted