Rainy is a minor character that appeared in "Another Way." She is Pan's wife. Finn accidentally rolled two melons over her, causing her to be rendered immobile. Later in the episode Finn healed her with Cyclops tears. Rainy is apparently pretty fragile, which is probably a result of her short stature.
Finn refers to Rainy as a small hairy man's wife. Rainy is about half as tall as Finn, making her the same size as Pan. Also like Pan, she has fur covering all of her body but her ears, face, and limbs and also has pig-like ears. Her fur is dark-brown and her skin is light pink, and she has her hair is in a side pony-tail.