'M'r. Grouper is the best preschool teacher in the world! He's friendly, funny, and full of information. He genuinely respects the Guppies' intelligence, encourages their curiosities, and nurtures their imaginations. Mr. Grouper sees every day as an opportunity for discovery. He knows how to be silly and play along with the Guppies, joining in their pretend play in the classroom and out. Mr. Grouper always ends the school day with an awesome field trip and a celebration of the episode's topic.He sang in The Farmer's Song from the episode Have A Cow!
Mr. Grouper is mostly orange, but it has been shown he can change colors.
Mr. Grouper has appeared in every episode of Bubble Guppies.