The Sun King is a character played by Mr. Grouper, who rules Bubbledom and owns the Ring to make the sun rise every morning.
The Sun King wears a long, blue robe rimmed with a golden color. He wears a golden crown with a sun printed on it.
The Sun King has only appeared once, in the season three double-length episode, The Puppy and the Ring.
- This is the first double-length episode in which Mr. Grouper takes part in the story.