Robert Lindsay and Zoë Wanamaker criticized the quality of the writing in the show's later seasons. Wanamaker revealed that they both refused to film one script because it was so bad.
Kris Marshall (Nick) wanted to be killed off the series, but the writers decided it would be better for him to have moved away.
Kris Marshall, who played Nick Harper for five years, was seven years older than the character he played. He found it hard to play the character because of the age difference. Fifteen-year-old Janey was played by twenty-one-year-old Daniela Denby-Ashe.
Despite getting the majority of the killer lines in the scripts, Kris Marshall finally left the show because people at casting calls for other roles refused to believe he was well into his 30s at the time (he was born in 1973).
This show was taped in front of a studio audience.