Guest Stars Fiona Dolman as Sarah Barnaby Tamzin Malleson as Dr. Kate Wilding Vincent Regan as Professor Philip Hamilton Andrea Lowe as Ava Gould Paul Copley as Frank Dewar Roy Hudd as Victor Spencer Rebecca Front as Rev. Martha Hillcott William Beck as Michael Dewar Ben Bailey Smith as Zach Lime Billy Postlethwaite as Noah Evans Patricia Brake as Stella Spencer Gerard Horan as Ewan Evans Michael Jayston as Rev. Arthur Gould Sarah Lochlan as Nancy Dewar
