Guest Stars Daisy Edgar-Jones as Olivia Marsden Sylvie Briggs as Ellie Marsden Ceallach Spellman as Matthew Williams Madeleine Edmondson as Chloe Gifford Jack Harper as Adam Gifford Marji Campi as Barbara Blyth Jay Rincon as Patrick Yemisi Oyinloye as Amber Michelle Holmes as Mary Harvey Chaisty as Youth Hollie-Jay Bowes as Sophie Stacey Evans as Quizmaster