Guest Stars Sasha Behar as Catherine Linn Adrian Rawlins as Harry Bundrick Anna Madeley as Anne Sadikov Ellie Kendrick as Megan Linn Richard Lintern as Sefton Linn Richard Dillane as Theodore Platt Crispin Redman as Dean Greely Nicola Redmond as Tina Daniels Diana Payan as Petra Bundrick Sian Thomas as Ingrid Nielson Martyn Whitby as John Staunton Mark Spalding as Love Lines Supervisor Anna Massey as Professor Margaret Gold Uncredited Christopher Fosh as Policeman Colin Dexter as Oxford Don in Dining Room Brian Teles as Forensic Technician