Cosmo (コスモ Kosumo?) is a main character from the sonic and pokemon series. She is a female child of a plant-like alien species whose homeworld was destroyed by the villainous Metarex and she is the only surviving member of her species (aside from the Metarex). She is an ally of Sonic the Hedgehog, Ash Ketchum and their friends, as well as a love interest for Miles "Tails" Prower.