Guest Stars India Fowler as Ellen Mason Freddie Thorp as Chris Chahal Amy James-Kelly as Jennny Delaney Isabelle Allen as Carrie Delaney Raj Paul as Darren Louis Greatorex as Henry Mason Emmett J. Scanlan as Josh Mason Rohan Nedd as Mike Karen Bryson as Helen Crowthorne Katy Carmichael as Rachel Delaney Amy-Leigh Hickman as Sia Marshall Chook Sibtain as Neil Chahal Hero Fiennes Tiffin as Ioan Fuller Laila Rouass as Lauren Marshall Imogen Gurney as Tilly Chahal Isabella Pinto as Dora Tyler Conti as Scott Joe Standerline as Martin Stephen Henry as Tim Kenmore Kate Maravan as Alex Miller Adam Borzone as Orthopaedic Doctor Jumayn Hunter as Youth 1 Morag Peacock as Receptionist Oli Meredith as Youth 2