The Mouse King is a minor character featured in the Disney Junior show Goldie & Bear. He appeared in the episode "Team Tiny".
The Mouse King resided inside the walls of the Bear Family house. He was rumored by Brian big, sneaky, and scary. He lived in a makeshift throne room full of objects he had collected over the years. Of course, the only reason he gathered things was because he longed for something to be proud of. Mama Bear's ring was his latest addition, but after Goldie, Bear and their tiny friends had a discussion with him, the Mouse King gives the ring back, telling about how he never realized how much it meant to her.