Guest Stars Annes Elwy as Greta Catherine Ayers as Sali Ella Peel as Ela Morgan Hopkins as Dai Rees Dylan Jones as Young Joe Sian Reese-Williams as Caryl Aled Bidder as Rhys Mari Ann Bull as Young Shelley Rhian Blythe as Shelley Aneirin Hughes as Gafyn Ifan Huw Dafydd as Wyn Hannah Daniel as Izzy Lisa Palfrey as Nina Aled Pugh as Ian Delyth Wyn as Eilis Hannah Mary Dando as Alana Ben Bailey Smith as Steve Alex Harries as Phil Tonya Smith as Carwen Dion Lloyd as Chris