Guest Stars Joan Blackham as Bridie Taylor Richard Braine as Christopher Purcell Simon Chadwick as Patrick Wallace Credit Only Diane Keen as Julia Parsons Stirling Gallacher as Georgina Woodson Sean Gleeson as Ronnie Woodson Christopher Timothy as Mac McGuire Ariyon Bakare as Ben Kwarme Corrinne Wicks as Helen Thompson Ben Jones as Greg Robinson Akemnji Ndifornyen as Nathan Bailey