Guest Stars Olivia Llewellyn as Mina Harker Hannah Tointon as Maude Gunneson Olly Alexander as Fenton Alun Armstrong as Vincent Brand Mary Stockley as Caroline Frankenstein Co Starring Gavin Fowler as Simon Martin Phillips as Stage Manager Gus Barry as Young Victor Anthony Brophy as Alphonse Lucas Farren as William Nathan O'Toole as Ernest