Guest Stars Ivanno Jeremiah as Inspector Barnes Jack Bandeira as Quill Kipps Rhianna Dorris as Kat Godwin Bronwyn James as Sergeant Wade Louise Brealey as Pamela Joplin Paddy Holland as Bobby Vernon Morven Christie as Penelope Fittes Luke Treadaway as Golden Blade Hayley Konadu as Flo Bones Michael Clarke as Skull