Fan Casting Redwall (40's animated movie)

What if the Redwall novel series by Brian Jacques was around in the 40's, and Disney, Fleischer, or another animation studio made movies based on it? For now, this cast will only focus on characters from the first book, but perhaps we can expand to later books in the future. In the first book, Matthias goes on a journey to find the legendary sword of Martin the Warrior, so he can save Redwall Abbey from being taken over by Cluny the Scourge.