Frog King is a character in Dobutsu. He is the king of the Frog Kingdom located in the Amphibian Kingdom as well as one of the Great Sages of the Animal Kingdom as a whole. When the two members of the World Crucaders came to see the Frog King, he was sick from the poisoned water. After he was cured, he asked them to help stop the Salamanders from causing any more trouble in his kingdom. An old , eccentric, and jolly king, Frog King keeps himself at good spirits. He is also quite fond of music.