but meant they were trapped on a parallel world: her final farewell at Bad Wolf Bay was 2006's most devastating TV scene http://www.youtube.com/watch?v=HB-s5HK8Za0 . 3. Ace (Sophie Aldred, 1987-90) This baseball-bat wielding, plastic-explosive-brewing tomboy became the saving grace of the final seasons. From a ridiculous premise - a pyromanic problem child