D.I. (formerly D.S.) Vicky Green was a detective who investigated the disappearance of Mandy Richardson after she failed to return home in June 1998. Mandy's boyfriend Sol Patrick was put in the frame, especially when Paul Millington refused to corroborate Sol's alibi that they were joyriding in a stolen car at the time. In April 2005, D.S. Green served as the family liaison officer when Mandy's half-brother Tom Cunningham went missing. He was later discovered by Mandy at her late mother and step-father's grave.
In May 2006, D.I. Green was called to 3 Oakdale Drive, Flat 4 following the tragic cot death of Grace Hutchinson, the daughter of Mandy and her husband Tony. She questioned Tony, Mandy and babysitters Hannah Ashworth and Nancy Hayton over what had happened up to when Mandy found Grace dead.