John Marwood Cleese is an English actor, comedian, writer, film producer, and singer.
Cleese is probably best known for his various roles in the British comedy Monty Python's Flying Circus, his role as Basil Fawlty in Fawlty Towers and his various roles in the British comedy The Frost Report. He also played the role of Archie Leach in the American / British comedy film A Fish Called Wanda.
My son listened to this last night as part of his bedtime wind down routine. I was quite excited, "John Cleese is reading this one!". My son was unmoved by the name drop, so I said, "But this book has knights and castles too!" Ah, very well then, at least it had that.