<P> Mary Jackson (Julia Deakin in Series 2 and Judy Holt thereafter), or "Scary Mary" as she is nicknamed by the department, is one of the pathologists who carries out post-mortem examinations in the mortuary . Her morbid sense of humor plays well off of Gill Murray's more blunt attitude, especially since Gill has a habit of personally attending crime scenes and autopsies . </P> <P> Dominic Bailey (Liam Boyle), Rachel's younger brother, is introduced in Series 2 . He had previously served a prison sentence for armed robbery . With nowhere to go after Alison throws him out, he ends up living with Rachel, who encourages him to look for work . At one point she walks in on him selling sex to men in her home; outraged, she forces him to get tested for HIV, which comes back negative . Dominic's stay with Rachel is marked by his irresponsibility and tendency to get in trouble; he nearly destroys her kitchen attempting to make a kettle of tea, and crashes her car during a joyride, which forces her to miss her Sergeant's exam . It is also suggested a few times that he had a drinking problem, and later on Alison and Rachel discuss the possibility that he is mentally slow . Despite her exasperation, Rachel continues to stand by him . In Series 3 he is charged with murder and goes back to prison, though not before he alleges that Rachel provoked him to commit the crime, which leads to her brief (re) arrest . </P> <P> Sharon Bailey (Tracie Bennett), Rachel's mother, appears in the third series after being mentioned several times in Series 1 and 2 . She is a boisterous, impulsive alcoholic who abandoned her children and is loathed by Alison, though Rachel tries to forgive her . Sean McCartney discovers that she was the one who sent bouquets of flowers to Rachel throughout the first two series . She drunkenly has sex with DC Pete Readyough in a car park at Rachel and Sean's wedding reception, but they are caught by Gill . Sharon uses this to extort money from Pete until he decides to admit it to his wife . His professional reputation is tarnished (along with a brief decline in his competency), and his marriage collapses . In Series 4 Sharon appeals to Rachel for help when her latest boyfriend becomes violent with her . </P> <P> Adrian "Ade" Scott (Tony Pitts), a geography teacher, was Janet's husband for twenty - five years . The pair have two teenage daughters, Taise and Elise (Sharon Flynn in Series 1 and Olivia Rose Smith from Series 2 onward). Early in Series two Ade walks out to live with his elderly father following various petty arguments with Janet's mother . Janet, at first appealing to him to stay, loses her temper and says she is fed up with his lazy, self - entitled behavior . Nevertheless, she continues to rely on him to help with their daughters and realizes just how much of their life he was responsible for maintaining . In the Series 2 finale Janet attempts a reconciliation, but this is ruined when Andy Roper spitefully reveals that his affair with Janet began long before their separation . Early in Series three, Ade admits he is seeing someone and tells Janet he wants a divorce . </P>

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