Skipper was a male otter and leader of the otters in Mossflower Woods. He and his crew lived at Redwall Abbey and assisted the creatures there, notably helping Brother Weld and Brother Gelf chop up a collapsed ash tree.
Just before the start of one summer, they departed Redwall for the Western Coast, having been provided with a cartload of food by Toran Widegirth. As a result, they were not present to defend the abbey from either Badredd's band or Raga Bol's Crew, but the ash wood they had cut did provide arrow shafts used by Lonna Bowstripe to help defeat the latter.