Their characters were replaced by PCs Luke Ashton and Sam Harker, with actors Scott Neal and Matthew Crompton appearing as guest actors on a number of times, both of the actor's most recent guest stints coming the previous year. The series also saw DC Tom Proctor, introduced into CID. Actor Gregory Donaldson revealed in a 2018 interview on The Bill Podcast that the role came after impressing producers in a guest stint earlier in the series, portraying burglary suspect Andy Melford in an hour-long special, "In the Dark".
Their characters were substituted by PCs Luke Ashton and Sam Harker, with actors Scott Neal and Matthew Crompton appearing as guest stars on several occasions. Both of these actors' most recent guest appearances occurred the previous year. The series also featured DC Tom Proctor, introduced into CID. Actor Gregory Donaldson disclosed in a 2018 interview on The Bill Podcast that he was cast after impressing producers during a guest appearance earlier in the series, playing burglary suspect Andy Melford in an hour-long special titled "In the Dark."