Eiso is a penguin who makes his first and only appearance in The Little Prince from the Ice.
Eiso bears the typical penguin anatomy, short and chubby with rounded wingtips and a long beak. His feathers are black, while his chest and inner flippers are white. Though mostly black, his face bears splashes of white around his eyes, which are blue.
Perhaps one of the rudest animals to set paw in the Pride Lands, Eiso is an established braggart with a harsh tendency to behave critically toward others. He is not one to keep his opinion to himself and can be scathing in regards to his pride.
Eiso arrives in the Pride Lands and tells Simba that his lands are much more beautiful than the savanna. Simba then shows him some of the creatures around the Pride Lands, but Eiso tells him that the animals in his lands are "more than thirty meters long." After Simba shows him the sunset, Eiso comments that in his lands, he can see the northern lights. An eagle soon takes him home, much to Simba's relief.