Bill Paterson as George Castle

Bill Paterson as George Castle

George Castle is the former Director of London Crown Prosecution Service. Castle ran his office with an iron hand, keeping the pressure on James Steel and Alesha Phillips, of whom he was fiercely protective. His office is respite for James and Alesha from the front lines of the legal wars with the defense.

Castle is a shrewd political operator with a brilliant understanding of how the legal ramifications of a case go beyond the innocence or guilt of a particular defendant. George plied his trade as an independent barrister - working both prosecution and defence cases - before being snapped up by the CPS in 1990 when he was at the top of his profession. He is driven by a sense of justice and it was considered a coup for the CPS to get him.

George is fiercely protective of Alesha and James but he'll always make the tough decision when necessary. He can cut to the heart of a case in seconds and is always able to put a counter-argument to whatever position someone else is taking.

George Castle has recently been appointed Director of Public Prosecutions, Henry Sharpe takes over the job of Director of the CPS.