Skipper was a large and brawny but playful male otter. He was the loving uncle of Slimbrook and Slippy, and good friend of Sergeant Swiftbuck. He was one of the main defenders at Redwall Abbey when Voskriss attacked the Abbey. He liked playing with Slippy and was enraged when Wisp stole him. Skipper could shoot a sling better than anyone at the Abbey. He, along with Swiftbuck got severely injured after fighting off a large group of vermin singlehandedly.