Battle Narrator

My daughter and I were very impressed by the re-enactement this year. We had a long visit of both campments, we found the realism of the warriors astonishing. As a game we tried to find any anachronisms, we found nothing, they were perfect like professionals in the film industry, we thank their engagement and their considerable drive.
I have just a question, we think have recognised the commentator as a famous English actor, were we right? Would anyone the kindness to tell us who was he?
Jean marie