Guest Stars Paul Popplewell as Paul Pegg Stirling Gallacher as Ffion Morgan Adam Sina as Marcus Fidel Raj Bajaj as Adith 'Adi' Kapadia Richard Harrington as Jonty Buchanan Natalie Anderson as Lyra Pierce Robbie O'Neill as Callum Jones Tachia Newall as Lewis Dawson Penny Ryder as Joyce Thomas Geoffrey Newland as Grant Thomas Mica Proctor as Kelly Marshall