Guest Stars Zienia Merton as Dr. Helen Billington Christian Rodska as Dr. Bailer Hermione Norris as Abby Larwood Richard Dormer as Rick Tomlinson Minnie Driver as Zena Mitchell Gerard Horan as Mal Wilkinson Chris Gascoyne as Cliff Davies Colin Tierney as Michael Letts Jill Benedict as Patricia Finlay Gareth Armstrong as Dr. James Carling Anna Niland as Ellen Jones Ben Howells as Liam Finlay Carly Tippens as Rachel Finlay Cathryn Bradshaw as Monica Larwood Michael Nicholson as George