Não, não há.
De acordo com o FAQ no site oficial de Brian Jacques, Redwall;
Q: I have just started your books. I have read Redwall and am now working on Mattimeo. At the beginning of Redwall there is the "riderless horsecart" and now in Mattimeo there is mention of a ship that sank. Are there humans somewhere in the realm of Redwall?
BJ: No, there are no humans, my first book Redwall did mention the horse and cart but no humans are ever in the stories and I don't intend that they should ever be. The ships are generally crewed by vermin.