Molly is a female guppy and a natural born leader. She is kind, helpful, and a really good friend. She is best friends with Gil, and they frequently play together. Molly co-hosts the show along with Gil, and due to her bubbly personality, every Guppy wants to swim with her. She always makes it a point to turn to the camera and talk to the audience directly, ensuring that they stay at the center of all the action. The smart co-host of the show, she sings nearly all the pop songs with her blue fish microphone, while the other guppies sing backup. She's good friends with all the Guppies and Mr. Grouper. Her favorite book is Mother Goose, As revealed in "We're Gonna Fly." the pop song from the episode "Gup, Gup and Away!" in Season 1 ofBubble Guppies.
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*The Crayon Prix! - She appeared with Deema.*Have a Cow! - She came up with the name of Butterscotch the cow's baby, Puddin'.*Happy Clam Day! - She saw Clam trying to mail himself, along with Gil.*The Lonely Rhino! - She helped Monty find a friend.*X Marks the Spot! - She and Gil meet a pirate who tries to find his treasure.*Happy Holidays, Mr. Grumpfish!*Bubble Puppy's Fin-tastic Fairytale Adventure!*The Cowgirl Parade*Tooth on the Looth!*Humunga-Truck!
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Molly has light brown skin, bright pink hair, and light brown eyes. She has a blue tail with swirling light blue and dark blue patterns on it. Her bikini top matches her tail. Molly is most likely Hispanic.