As you don't know the series, hankir (it's etched on my mind) the quote is the obvious one, and (specifically) what he says he isn't needs to be found in the top row to start the escape attempt.
ProfessorM, not knowing much about the series:
I think the quote could be I am not a ??????, I am a ???? ???.
The escape could start at the clue, his given designation.
But I am guessing too much without reading the plot.
The guardian has a V in the middle but I do not see a V in the grid.