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 Kemp and his Extreme World team return to reveal the human stories behind the world's toughest issues. In this new series, Ross continues to gain unparalleled access to the people and places caught up in the most important concerns of our time, heading to Colombia, Kurdistan, Mozambique, Mongolia and the US/Mexico border to investigate some of each country's most pressing problems. The sixth and final series of Extreme Worlds started airing on 21 February 2017 on Sky One, it will be the final series as Sky One want to move onto more comedy and drama programs for the future. The