Guest Stars Claire Skinner as Charlotte Twist Neil Morrissey as Ross Pickard Siân Phillips as Grandma Dix Bluey Robinson as Tony Donner Sophie Melville as Daisy Philips Joshua James as Nathan Dix Charlotte Emmerson as Martha Frankland Dominic Mafham as Iain Frankland Robert Pickavance as Ferguson Esh Alladi as Khalid Hassan Gaia Wise as Emma Frankland Esme Scarborough as Letitia