Guest Stars Oliver Chris as Freddy Siân Brooke as Karen Darren Boyd as Scott Ophelia Lovibond as Erica Robyn Cara as Jen Marian McLoughlin as Jilly Fola Evans-Akingbola as Harper Navin Chowdhry as Deven Co Starring Ava Talbot as Lauren Ciara Baxendale as Amy Bruce MacKinnon as Ben Susannah Wise as Denise Tomiwa Edun as Luke Denver Isaac as Kwame Justine Mitchell as Lizzie Justin Sysum as Phil