Guest Stars Carol Royle as Mrs Carrie Bright Stephanie Leonidas as Violetta Talenti Ryan Gage as Ludo Talenti Flora London as Bridget Mulcahy Sam Ferriday as Carl Sturgis Richard Harrington as Dr Dai Ferman Holli Dempsey as Jenny Tate Lucy Briers as Mrs Blish Naomi Battrick as Dr Naomi Benford Reece Ritchie as Dr Jeremy Kreitsek Angus Wright as Professor Donald Blish Beverley Klein as Mrs Carlin Nicola Duffett as Reet Ellison John Hales as Saward Oliver Boot as Tony Jakobssen Lucy Farrar as Molly Andrews