| Darsteller | Rolle |
|---|---|
| Joanna Scanlan | Janice Gray (6) |
| Lydia Wilson | Matilda Gray (6) |
| Richard Harrington | Aron Morgan (6) |
| James Frecheville | Nick Dean (6) |
| Joel Fry | Hal Fine (6) |
| Charles Dale | Royce Evans (6) |
| Sian Reese-Williams | Trudy Franken (6) |
| Claire Rushbrook | Rose Morgan (6) |
| Tara Fitzgerald | Sylvia Walsh (6) |
| Simon Kunz | Lloyd Satlow (6) |
| Brendan Coyle | Stephen Kendrick (6) |
| Brochan Evans | David Morgan (5) |
| Ifan Huw Dafydd | Harry Franken (5) |
| Darren Evans | Constable Shortly (5) |
| Clare Calbraith | PC Graves (5) |
| Pippa Haywood | Verity Satlow (5) |
| Dyfan Dwyfor | Ed Fenton (5) |
| Sam Hazeldine | Sean Howell (4) |
| Emmie Thompson | Carys Howell (4) |
| Bella Ramsey | Young Matilda |
| Oliver Lansley | Carl (3) |
| Grant Crookes | Police Officer (3) |
| Jane Thorne | Meredith Dean (3) |
| Anastasia Hille | Laura (2) |
| Sonia Ritter | Kath (2) |
| Daniel Baker | Kendrick's Son (2) |
| Rupert Lazarus | Emile (2) |
| Ffion Jolly | Yard Duty Teacher |
| Gareth Mason | Locksmith |
| Caroline Martin | Ms Clancy |
| Richard Price | London Passerby |
| William Thomas | Stan |
| Mali Morse | |
| Michael Christmas | London Bus Passenger |
| Thomas Arnold | Police Officer |
| Daniel Joseph Woolf | Concert attendee |
| Gareth Key | Paramedic |
| Alex Brock | Hunky Guy |
| Nimmi Harasgama | DI Alice Brenton |
| Andy Clarkson | Sound Technician |
| Nick Hobbs | Ewan Dean |
| Nicholas Anscombe | Creature |
| Nicola Reynolds | Natalie Franken |
| Lisa Zahra | School Mum |
| Paul Blackwell | Paramedic |
| Colin Murtagh | Paramedic |
| Adrian Metcalfe | Big City Detective |
| Tibu Fortes | Casualty Nurse |
| Indra Ové | TV Host |
| Simon Winkler | Clerk |
| Donna Berlin | Celia |
| Helena Dennis | Patient |
| Christina Tam | Sheila |
| Caroline Berry | Mrs. Robson |
| Gareth John Bale | Resident |
| Sion Alun Davies | Constable Pierce |
| Mark Preston | Policeman |