Richard Cordery

Martin and Louisa invite the chairman of her school's board of governors for dinner, but the evening ends in disaster. After taking offence at Martin's diagnosis of her skin problem, the new nanny walks out. PC Penhale phones Radio Portwenn for relationship advice, then goes on a charm offensive to win friends.

Kavanagh represents a Jehovah's Witness mother when a hospital wants her young son to have a blood transfusion. The hospital wins its action but when the boy dies and his father brings an action for manslaughter against his estranged wife, Kavanagh is called as a witness.