Distribuția seriei 31

1. 

   David Tennant

   Dennis Nilsen (3 de episoade)

2. 

   Daniel Mays

   DCI Peter Jay (3 de episoade)

3. 

   Jason Watkins

   Brian Masters (3 de episoade)

4. 

   Ron Cook

   DSI Chambers (3 de episoade)

5. 

   Faye McKeever

   Linda Jay (3 de episoade)

6. 

   Barry Ward

   DI Steve McCusker (3 de episoade)

7. 

   Ben Bailey Smith

   DC Brian Lodge (3 de episoade)

8. Alex Bhat

   DS Jones (3 de episoade)

9. 

   Jay Simpson

   DS Chris Healey (3 de episoade)

10. 

    Bronagh Waugh

    Charlotte Proctor (3 de episoade)

11. 

    Joel Morris

    Tim Wells (3 de episoade)

12. 

    Laurie Kynaston

    Carl Stottor (3 de episoade)

13. 

    Alexander Bhat

    DS Jones (3 de episoade)

14. 

    Cal MacAninch

    Neil Sinclair (2 de episoade)

15. 

    Oscar Salem

    Juan (2 de episoade)

16. 

    Jonathan Coy

    Professor David Bowen (2 de episoade)

17. 

    Neil Edmond

    Clerk of the Court (2 de episoade)

18. Ross Anderson

    Douglas Stewart (1 episod)

19. 

    Laura Elphinstone

    Tilly (1 episod)

20. 

    Tony Way

    Mike Cattran (1 episod)

21. 

    Stuart McQuarrie

    Ronald Moss (1 episod)

22. Andy Jay

    News Correspondent (1 episod)

23. 

    Pauline Turner

    Elizabeth Sinclair (1 episod)

24. 

    Beth Goddard

    Frances (1 episod)

25. 

    Tor Clark

    Foreman of the Jury (1 episod)

26. 

    Ross Anderson

    Douglas Stewart (1 episod)

27. 

    Andrew Woodall

    Dr Hardy (1 episod)

28. 

    Ken Bones

    Judge Croom-Johnson (1 episod)

29. 

    Silas Carson

    Russell Cavendish (1 episod)

30. 

    Gerard Horan

    Commander Gerald Lookwood (1 episod)

31. 

    Amaka Okafor

    Emily (1 episod)

Echipă filmare serial 18