- Anna Leong Brophy - Belinda
- Sam Hoare - Charlie
- David Mumeni - Mark
- Marc Ozall - Richard
- Masayo Aizawa - Sakura
- Georgia Landers - Elizabeth Monkford
- Stewart Scudamore - Professor Summerfield
- Bert Seymour - Andrew
- Nicola Alexis - DCI Patricia Shapton
- Natasha Atherton - Leona
- Fayez Bakhsh - Sami Ahmad
- Katy Carmichael - Linda Waugh
- Li Dan - Dr Green
- Kayla Meikle - DI Liz Willan
- Kayla Meikle - DS Liz Willan
- Kayla Meikle - DI Liz Williams
- Lucy Russell - Rachel
- Mia Soteriou - Sue McCann
- Rakhee Thakrar - Mia
- Mark Stanley - Saul
- Ian Conningham - DI James Clarke
- Amanda Drew - Carol
- Ben Addis - Peter Creed
- Jason Thorpe - John Broome
- Antonia Clarke - Alyssa
- Francesca Knight - Camilla
- Luke Norris - Paul Ellis
- Lisa Faulkner - Tessa
- Simon Treves - Jeweller
- Jimmy Walker - Ray Nelson
- Timothy Wood
- Stephen Gallacher
- Rebecca Rose
- Simon Sharrod
- J.P. Delaney
- Serene Allen
- Joel Cockrill
- Joanna Vellacott
- Rhonda Smith
- Rory Aitken
- Ben Pugh
- Zoë Ellen Bryant
- Andrew Neil
- Peter Saville
- Ben Norrington
- Danny Bensi
- Ed Hamilton
David Oyelowo interpreta a Edward en la serie.
Jessica Kate Plummer interpreta a Emma en la serie.
Ben Hardy interpreta a Simon en la serie.
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