Guest Stars Rory Fleck Byrne as Harry Ambika Mod as Shruti Michele Austin as Tracy Hannah Onslow as Erika Philippa Dunne as Ria Rosie Akerman as Paula Alex Jennings as Mr. Lockhart Tom Durant-Pritchard as Greg Michael Workeye as Ben Josie Walker as Non-Reassuring Trace Agata Jarosz as Agnieska Sara Kestelman as Mrs. Winnicka Yasmin Wilde as Benilda Sarah Durham as Anna James Corrigan as Welly Grace Cookey-Gam as Amie Marion Bailey as Callie's Mother Heather Agyepong as Rachel Andreea Paduraru as Andrea Alice Bailey Johnson as Callie Marcel Dorian as Andrea's Husband Andrew Nolan as Graham
