Molly is Loonette's sentient plush clown doll. She usually wears a blue dress but sometimes she wears a yellow dress. She is about 3 years old. She is friends with the dust bunnies, which Loonette doesn't believe in. Molly is a picky eater; she loves doughnuts and other junk foods. Molly tends to like to get things HER way, otherwise, Molly is Loonette's best friend. Molly learns something everyday. Molly can be mischevious and wise, but sweet. Loonette never gets mad at Molly, not even when she is not listening or lying. Which is a good example. Unlike all dolls, Molly actually moves. But like all dolls, Molly can’t talk but she does have thought bubbles to tell Loonette what she wants.
She can also pee, as shown in the episode Lettuce Turnip And Pea, but it is unknown exactly how sentient she is.
Molly occasionally wears a hair accessory of some sort.
Molly and Loonette have such a far friendship, yet so close. Far that they don't always agree, close because they are always there for each other. Little is known what Molly does when Loonette does the clock stretch, she possibly sits and waits, or does what Loonette tells her, like in Picky Eaters Loonette told Molly to set up a table (Which she did) it is shown Molly really doesn't walk, Loonette carries her. Molly can be very difficult to Loonette, but Loonette and Molly are best friends.
While Loonette can be stern with Molly when she misbehaves, she is never mean and they always forgive each other.