Alex Lawther James Actor Jessica Barden Alyssa Actor Wunmi Mosaku Teri Actor Gemma Whelan Eunice Actor Steve Oram Phil Actor Christine Bottomley Gwen Actor Navin Chowdhry Tony Actor Destiny Ekaragha Director Jenny Frayn Producer Charlie Covell Writer, Executive Producer Jonathan Entwistle Executive Producer Murray Ferguson Executive Producer Ed MacDonald Executive Producer Andy Baker Executive Producer Dominic Buchanan Executive Producer