| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Anthony Horowitz | Crew | Creator | Creator | |
 Colm McCarthy | Crew | Directing | Director | 5 |
 Amelia Lowdell | Cast | Actress | Pamela Stewart | 2 |
 Andrew Tiernan | Cast | Actor | Michael Bankes | 2 |
 Camilla Power | Cast | Actress | Caroline Newall | 2 |
 Charlie Creed-Miles | Cast | Actor | DI Mark Wenborn | 5 |
 David Rintoul | Cast | Actor | Henry Conway | 2 |
 David Schofield | Cast | Actor | ACC Stephen Packard | 4 |
 Dervla Kirwan | Cast | Actress | Jane Travers | 5 |
 Hilton McRae | Cast | Actor | PMO Adam Christie | 3 |
 Ian Burfield | Cast | Actor | Terry Cooper | 3 |
 Imogen Stubbs | Cast | Actress | Gemma Lawrence | 2 |
 Ivan Kaye | Cast | Actor | DS Harry Bowman | 1 |
 James Purefoy | Cast | Actor | William Travers | 5 |
John McGlynn | Cast | Actor | John Renner | 3 |
 John Warnaby | Cast | Actor | Malcolm Arnold | 2 |
 Kate Dickie | Cast | Actress | Joanna Kirsten | 1 |
 Marcia Warren | Cast | Actress | Mary Davis | 2 |
 Nathaniel Parker | Cast | Actor | Martin Newall | 5 |
 Nick Dunning | Cast | Actor | Jeremy Forbes-Watson | 3 |
Paul Keating | Cast | Hotel Receptionist | 2 | |
 Peter Ferdinando | Cast | Actor | John Slater | 2 |
 Robert Whitelock | Cast | Actor | Philip Spaull | 4 |
 Sasha Behar | Cast | Actress | Natalie Chandra | 5 |
Simon Cook | Cast | Actor | Judge | 2 |
 Stephen Hogan | Cast | Actor | Eric Ducann | 3 |
 Susannah Doyle | Cast | Actress | Susannah James | 3 |
 Tim Dantay | Cast | Actor | Robert Stevens | 1 |
 Tim Wallers | Cast | Actor | Ian Miller | 2 |
 Elijah Baker | Cast | Darren (Young Offender) | 3 | |
 Jacob Anderson | Cast | Actor | Simon (Young Offender) | 3 |
 Jan Uddin | Cast | Actor | Tariq Hal-Hamdani | 2 |
 Jayne Wisener | Cast | Actress | Lucy Wilson | 4 |
 Obi Abili | Cast | Actor | DS Nick Taylor | 5 |
Lisa Diveney | Cast | Actress | Kate Travers | 5 |
 Stephen Hagan | Cast | Actor | David Canning | 3 |
 Ivanno Jeremiah | Cast | Actor | Liam Johnstone | 1 |
 Joe Cole | Cast | Actor | Alan Stewart | 4 |
Kelvin Wise | Cast | Prison guard | 1 | |
 Debra Leigh-Taylor | Cast | Actress | Shop Assistant | 1 |
 Yuna Shin | Cast | Actress | Miss Sun-Jung | 3 |
 Nick Court | Cast | Actor | Gavin Brooke | 2 |
Kirsty Bushell | Cast | Maggie Wenborn | 5 | |
 Clifford Barry | Cast | Actor | Dennis Watts | 1 |
 Angela Wynter | Cast | Actress | Liam's Mother | 1 |
Tariq Jordan | Cast | Actor | Jameel Khan | 2 |
Steve Hansell | Cast | Ralph Bates | 3 | |
| Person | Type | Job | Role(s) | Episodes |
