Editing Silent Witness (section)

===Recurring===
*Detective Chief Inspector Tom Adams ([[John McGlynn (actor)|John McGlynn]])&nbsp;– series 1. An investigator with the Cambridgeshire police force, who had an affair with Kerry Cox, before her death. 
*Superintendent Helen Farmer ([[Clare Higgins]])&nbsp;– series 1. A superintendent, and Tom Adams' boss and mentor, who accompanied him on investigating several cases during his time in the force.
*Ricky Ryan ([[Matthew Steer]])&nbsp;– series 1. Wyn's son and Sam's nephew, who regularly got into trouble and was expelled from school for very poor behaviour.
*Trevor Stewart (William Armstrong)&nbsp;– series 1–3. As well as being a pathologist in his own right, Trevor was Sam's business partner, owning half of the morgue and its facilities. Trevor decided to stay in [[Cambridge]] with his friends and family when Sam accepted the professorship position at a university in London and moved away at the end of series three.
*Wyn Ryan ([[Ruth McCabe]])&nbsp;– series 1–3. Professor Ryan's sister who moved to Cambridge with her mother some years before Sam's arrival, and one of the reasons Sam Ryan relocated. Initially their relationship was strained, but eventually the two moved in with one another and grew close. In the first episode of series 3, it is announced Wyn returned to Ireland. Wyn makes one appearance in season three to visit Sam and announce her upcoming wedding.
*Superintendent Peter Ross ([[Mick Ford]])&nbsp;– series 2. A superintendent, and an ex-boyfriend of Sam's, who believed in a strong relationship between the police and the pathology lab.
*Detective Chief Inspector Michael Connor ([[Nick Reding (actor)|Nick Reding]])&nbsp;– Series 3–4. A detective chief inspector, and old friend of Sam's, whom she met during her junior years at university. He makes one appearance for the third story of the fourth season. 
*Detective Sergeant Rob Bradley ([[Mark Letheren]])&nbsp;– series 3. A detective sergeant, who as Connor's junior officer, accompanied him with the investigating in the cases which he was assigned to.
*Fred Dale (Sam Parks)&nbsp;– series 1–3. Fred was Sam's main assistant during post mortems and on visits to crime scenes, often identifying DNA samples at the scene of the crime, and linking them to those responsible. He was also notable for not having many speaking lines, and regularly appearing without speaking. His fate at the end of series 3 was not revealed.
*Detective Constable Kerry Cox ([[Ruth Gemmell]])&nbsp;– series 1. A junior trainee detective who had an affair with Tom Adams, but was later killed in a freak accident in a hospital basement.
*Detective Constable Marcia Evans (Janice Acquah)&nbsp;– series 1. A fellow junior trainee detective for the Cambridgeshire police force, who resigned after Kerry Cox's death.
*Detective Chief Inspector Rachel Selway (Nicola Redmond)&nbsp;– Series 2. Tom Adams' replacement, following his resignation from the force. She joined the team alongside junior sergeant Tony Speed.
*Detective Sergeant Tony Speed (Richard Huw)&nbsp;– series 2. A junior sergeant, who joined the team alongside his superior officer, Rachel Selway. He knew Peter Ross from a previous posting.
*Janet Mander ([[Jaye Griffiths]])&nbsp;– series 12–15. Janet is a psychological profiler who assists the police in cases of serial offences. She began a relationship with Leo in the episode "[[List of Silent Witness episodes#ep90|Death's Door]]", and they lived together as partners until Leo ended the relationship in "[[List of Silent Witness episodes#ep126|Redhill]]". She recurringly worked alongside the team to provide them with information in order to get an idea of the suspect they are looking for. Janet decided to move away from London after Leo ended their relationship.
*Charlie Gibbs ([[Wunmi Mosaku]])&nbsp;– series 13. A junior doctor and lab technician, who was appointed to work with the team by Professor Dalton.
*Zak Khan (Arsher Ali)&nbsp;– series 14. A junior doctor who worked his forensic science apprenticeship with the team, to learn the ropes of the profession.<ref>{{cite web|url=https://twitter.com/arsherali/status/111159935869534208|title=Arsher Ali|access-date=9 September 2011}}</ref>
*Rosemary Mason ([[Jane Hazlegrove]])&nbsp;– series 6–7. The main receptionist at the Lyell Centre, before the change in focus from university department to purely commercial pathology.
*Max Thorndyke ([[Daniel Weyman]]) – series 20–22. Max is Clarissa's husband, a forensic data analyst originally called in by the Lyell team to help solve a case in series 20 but returning in 2 further episodes in series 21.
*Matt Garcia ([[Michael Landes]]) - series 21–23. Matt is the U.S. [[Head of mission|Chief of Mission]] in the U.K. He begins a relationship with Nikki during the series 21 episode "[[List of Silent Witness episodes#ep186|A Special Relationship]]" which they maintain despite the difficulties of a long-distance relationship and Matt's political aspirations. The two part ways in the series 23 episode "[[List of Silent Witness episodes#ep202|Deadhead]]".
*Adam Yuen ([[Jason Wong]])&nbsp;– series 24. Adam is a confident, bright and keen pathologist who joins Nikki and Jack at the Lyell Centre. He dies midway through series 24, after being hit by a car, whilst investigating a suspect.