Guest Stars Grace Hogg-Robinson as Tess Marshall Joshua Hogan as Barney Marshall Ellie Kendrick as Stephanie Lodge Emmanuel Imani as James Odubajo Con O'Neill as Harry Rowntree Mark Bazeley as Sam Marshall Max Parker as John Cripps Pearce Quigley as Nick Dunbar Yemisi Oyinloye as Eloise Porter Molly McGlynn as Jane Allum Denise Moreno as Isabella Katherine Jack as Cressida McGuire Hannah Barrie as Woman in Queue Natasha Ferguson as PC Sarah Jarvis Laura Meredith as University Student Zar Damani as Kemal Hussain Inmaya Ali as Kemal's Daughter Kel Allen as Water Distributor Chris Taberner as Protection Patrol Man Arabella Arnott voices Radio Presenter Charlotte Baker as Woman in Crowd
