The Swan Princess The alligators appears first in the moat of the castle near Swan Lake. When Jean Bob attempts to get flowers for Odette , the alligators try to eat him , but he escapes thanks to Odette. Later, when Odette and her animal friends attempt to steal Rothbart's map , Jean Bob uses the map as a parachute and sees the alligators waiting below. But , he is saved by Odette ( in swan form ) before the alligators get their would be meal. Later , the alligators appear when Jean Bob , Speed and Puffin attempts to free Odette from Rothbart's water dungeon. Speed distracts them long enough for Jean Bob to get inside the dungeon through the lake , and when Odette is freed , the alligators try to eat her too, but her animal friends save her and she flys away to Derek's Kingdom.
They are most likely Rothbart`s pets and guard the moat for him day and night. They are still there even after Rothbart is gone.