| Sabrina | Albright | A detective constable. |
| Chris | Bryant | Sabrina's colleague. |
| Joanna | Dafoe | The deputy commissioner of London Police. |
| Erin | Fair | Josie's daughter. |
| Jason | Fair | Walter's son. |
| Josie | Fair | Alix's birthday twin. |
| Roxy | Fair | Josie's daughter. |
| Walter | Fair | Josie's husband. |
| Angel | Hiddingfold-Clarke | Tim's wife. |
| Tim | Hiddingfold-Clarke | Fred's current owner. |
| Amy | Jackson | Josie's neighbor. |
| Abigail | Kurti | Brooke's mother. |
| Marie | Le Jeune | The woman who runs a global beauty empire. |
| Helen | Loyd | Josie's school friend. |
| Shortland | Mews | A news reporter. |
| Pat | O'Neill | Josie's mother. |
| Astrid | Pagano | The hotel manager. |
| Katelyn | Rand | Josie's acquaintance. |
| Mandy | Redwood | The school administrator at Parkside Primary School. |
| Brooke | Ripley | Roxy's friend. |
| Ffion | Roberts | Brooke's aunt. |
| Matt | Salter | A news reporter. |
| Clare | Small | A holiday makers at Ambleside Manor Park. |
| Georgie | Small | Clare's daughter. |
| Alix | Summer | A popular podcaster. |
| Eliza | Summer | Alix's daughter. |
| Leon | Summer | Alix's daughter. |
| Nathan | Summer | Alix's husband. |
| Ari | | One of the subscribers to gaming platform "Glitch". |
| Billy | | Maxine's son. |
| Dan | | One of the subscribers to gaming platform "Glitch". |
| Fred | | Josie's dog. |
| Giovanni | | Nathan's best friend. |
| Harry | | Alix's next door neighbor. |
| Jonny | | Maxine's son. |
| Juno | | One of the subscribers to gaming platform "Glitch". |
| Mandy | | The office manager. |
| Mari | | One of Alix's podcast guests. |
| Maxine | | Alix's sister. |
| Nathalie | | Giovanni's partner. |
| Petal | | Zoe's child. |
| Skye | | Alix's cat. |
| Troy | | Josie's former schoolmate. |
| Zoe | | Alix's sister. |