Series 18 of British television drama The Bill consisted of 86 episodes, broadcast between 3 January and 31 December 2002. This series marked a massive change for the show, after it received a new executive producer, Paul Marquess. Series 18 became the first series to be broadcast in serial format, and generally, only one episode was broadcast per week. The style of the programme also noticeably changes, becoming less police procedural and more "soap opera". This meant that the personal lives of characters were regularly explored for the first time, meaning several characters had family members or partners introduced, casting that rarely happened prior to the Marquess era.