I have just finished reading 'Strike Back', it is not a book that Iwould have normally read, but with you know who in mind as JP I quite enjoyed it I would agree about the similarities between John and Guy S3. RA will have to be quite bedragled at times, and we already know he can interpret a 'tortured soul' so well.
I am looking forward to the TV adaptation, it should be good.
Then maybe more Spooks, then Charlie, great!!! Maybe Bond!!! who knows?