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: Extreme World be the last, with Sky1 having axed the series on 9 February 2017 to "make way for drama and comedy", as part of the channel's shift away from "commissioning factual entertainment." <onlyinclude></onlyinclude> Ross Kemp returns to helm another documentary series for Sky 1, this time Ross Kemp: Extreme World. The series sees Kemp travel to places like Pakistan and the Democratic Republic of Congo to learn more about how terrorists and criminals are ruining many lives. Ross Kemp returns to helm another documentary series for Sky 1, this time Ross Kemp: Extreme World. The series sees Kemp travel to places