Guest Stars Nia Roberts as Linda Chris Reilly as Ray Jack Parry-Jones as Luke Suzanne Packer as Layla Gareth Jewell as Carl Sara Lloyd as Patricia Rebecca Hayes as Mel Gwyneth Keyworth as Ela Matthew Aubrey as Rhys Lily Enticknap as Ruby Gwion Cornish as Six-Year-Old Sam Justin Sysum as Gwyn Rob Spragg as Douglas