Dorka Gurdy was the otter Gatekeeper of Redwall Abbey. She was also the sister of Jum Gurdy, and the niece of Wullow. Dorka was the one who recognized the symbol Uggo Wiltud described in his vision for what it was; the sign of Razzid Wearat. She was later visited by the spirit of Martin the Warrior, who gave her a message to give to the Abbey.