So far as Honourable is concerned, if you are talking about British titular convention, you need to bear in mind the different reasons people use Honourable.
All Members of Parliament have the right to be known as Honourable. So they are often referred to such as 'The Honourable Denis Skinner M.P.' In the House of Commons members refer to one another as 'The Honourable Member for name of constituency' e.g. 'The Honourable Member for Norwich North'. Individual members do not use the other members' surnames, only the Speaker (who presides) does that. Privy Councillors (people who have been appointed for life as members of Her Majesty's Council of State - such as Cabinet Ministers, former Cabinet Ministers etc, are known as Right Honourable). The abbreviations are Hon and Rt. Hon.
Many other people such as members of the House of Lords and senior members of the judiciary attract the titles Honourable and Right Honourable.
So far as ordinary circuit judges and judges of the Crown Court are concerned, however, they do not carry the appendage Honourable as part of their title. An ordinary Crown Court judge is simply known as Judge Fortescue, and is referred to that way in the press etc. But in court everyone addresses the judge as Your Honour, and refer to him as His Honour. And very formally, (such as in law reports) there will be references to His Honour Judge Fortescue.
See the attached: http://en.wikipedia.org/wiki/Judicial_titles_in_England_and_Wales
Whilst the above applies to England and Wales, there are very different naming conventions in Scotland.
The Wonderful John Acton attracts the definite article to distinguish him from all other John Actons. Use of the definite article indicates that there is only one. So it would make no sense to say The John Acton as there may be many of them. You could however say A certain John Acton telephoned and left a message, using the indefinite article to indicate that he was only one of many possible John Actons.