Walter is a rash young man who speaks bluntly, but despite his demeanor he does have a caring heart and believes in doing what's best. He concludes that the nature of a Samurai's duty is a perfect match with his personality. He comes from the family of Casualries like Flynn.
Due to his boisterous nature, there is some friction between him and fellow rookie Jonathan. Though limited to minor scuffles at first. He reasonably often prefers choices that allow more freedom as of result