Skipper was the male leader of a tribe of otters residing in Mossflower Woods and the father of Rangapaw. He was a hardened warrior, and friends with Martin II of Redwall Abbey and Log-a-Log of the Guosim.
Skipper joined Martin, Clecky, and Gerul in an attack against Lask Frildur's monitors and Romsca's corsairs, resulting in grievous injuries. During the melee, Skipper succeeded in killing a monitor without using a weapon.
Later, along with Rangapaw and Log-a-Log, Skipper assisted in removing the jackdaws from Saint Ninian's Church. Following this, he found one of the Tears of all Oceans inside and immolated the building on orders from Rollo.