Skipper was a sturdy male otter and the leader of the otters in Mossflower Woods. He met Janglur Swifteye and his family and Log-a-Log when they were traveling to Redwall Abbey to warn its residents about Marlfoxes.
Skipper helped defend Redwall Abbey against the Marlfoxes. While Skipper was scouting around the structure, he was wounded by one of the ferrets of Raventail before Marlfoxes and their allies attacked. Skipper nursed himself in the depths of Mossflower and went to get reinforcements. They arrived at Redwall during the final battle against Marlfoxes and were responsible for throwing the javelin that killed Vannan.