Guest Stars Tom Mison as Dorian Crane Adrian Lukis as Jem Wishart Cara Horgan as Alice Wishart Selina Cadell as Professor Rutherford Katia Winter as Marina Hartner Anastasia Hille as Ginny Harris Art Malik as Professor Hamid Jassim Claire Brown as Kelly Belford Olly Alexander as Hayden Wishart Farzana Dua Elahe as Leyla Adan Louise Dylan as Melanie Harding Mike Burnside as Pub Landlord Simon Kerr as Canadian Tourist Uncredited Colin Dexter as Man Leaving The Randolph