Phil FletcherHacker's Handler Ed PetrieLord Percy (segment: Downstairs Abbey) Warrick Brownlow-PikeDodge T. Dog Isabel FayLady Sarah (segment: Downstairs Abbey) Gemma ArrowsmithMrs. Doo (segment: The Adventures of Sherlock Bones) Julie WestwoodBaroness von Cat (segment: The Adventures of Sherlock Bones) Isabel CliftonSelf - Guest Matthew AshfordeSelf - Guest Andy DaySelf - CBeebies Presenter Phil TufnellSelf - Mystery Guest Alex WintersSelf - CBeebies Presenter Carmella MilneSelf - Blue Peter Floor Manager Jamie WilsonRegista / Assistant Producer Graham DaviesSceneggiatore / Assistant Producer Annette WilliamsProduttore Esecutivo Dave BeardsellProduttore Esecutivo Kieron TownendAssistant Producer Chantal DelaneyAssistant Producer Helen BurtTalent Producer Sean PonziniAssistant Producer Sohail ShahDevelopment Producer Lee EnglishSeries Producer John HarkinsSeries Producer Luke BeddowsScript Writer 
