Bravo ,  The Children of Green Knowe ,  Doctor Who  (in the serial  Dragonfire ) and  Hetty Wainthropp Investigates . In 2006, guest-starred in the  audio drama Sapphire and Steel: Cruel Immortality . She has also appeared in three episodes of  Midsomer Murders  (2004–2008) as Muriel, Cully's grandmother. Film credits include  All