Guest Stars Daisy Edgar-Jones as Olivia Marsden Ceallach Spellman as Matthew Williams Sylvie Briggs as Ellie Marsden Madeleine Edmondson as Chloe Gifford Jack Harper as Adam Gifford Lucy Robinson as Robyn Duff Sunetra Sarker as Deborah Yemisi Oyinloye as Amber Claire Keelan as Sandra Gerald Kyd as Roger Muir Jay Rincon as Patrick Tim Dantay as Robbie Sally Rogers as Sheila Jamel Dwyer as Toby Alan Williams as Chris Rebecca Ashton as Waitress
