Emilia Fox Dr. Nikki Alexander Actor William Gaminara Leo Dalton Actor Tom Ward Dr. Harry Cunningham Actor Doreen Hepburn Actor Mick Ford Actor Chris Wilson Actor Ian Keith Actor Arsher Ali Actor Mark Lewis Jones Actor Kelly Harrison Actor Sinéad Keenan Actor Roy Marsden Actor Michael Shaeffer Actor Sorcha Cusack Actor Ysobel Gonzalez Actor Michele Austin Actor Adrianna Bertola Actor You-Ri Yamanaka Actor Clive Hayward Actor David Acton Actor Richard Signy Director Renny Rye Director Michael Crompton Writer Nigel McCrery Writer Laura Mackie Executive Producer Jessica Pope Executive Producer Susan Tully Director Richard Burrell Producer Timothy Prager Writer Phillippa Giles Executive Producer