Guest Stars Bea Santos as Louise Cherry Mouna Traoré as Rebecca James Erin Agostino as Nina Bloom Peter Stebbings as James Pendrick Co Starring Arwen Humphreys as Margaret Brackenreid Kristian Bruun as Constable Augustus "Gus" Jackson Katy Breier as Lydia Hall Glenda Braganza as Ashmi Teagan Vincze as Estephanie Katriina Isberg as Dr. Karlsson Joseph Di Mambro as Ernest Andrew Di Rosa as Peregrine Fawkes Liz Johnston as Woman