Mothwing is a dappled golden tabby she-cat with amber eyes. Mothwing is a medicine cat and a temporary leader for RiverClan alongside her apprentice, Frostpaw. She was born as Moth to Sasha and Tigerstar alongside her brothers, Hawk and Tadpole. After Tadpole died, Sasha brought her kits to RiverClan, and Moth became an apprentice as Mothpaw with the Clan deputy Mistyfoot as her mentor. She later earned her warrior name of Mothwing and grew inspired to become a medicine cat. In order to secure power, Hawkfrost faked an omen so Mudfur would accept Mothwing as his apprentice. Mothwing initially dreamed of StarClan, but when Hawkfrost revealed he faked the omen, she refused to believe in StarClan because of it. After Mudfur's death before the Great Journey, Mothwing became RiverClan's sole medicine cat. She formed a close friendship with the ThunderClan medicine cat Leafpool, and she assisted with training Mothwing's apprentice, Willowshine, about StarClan and dreams. Mothwing was manipulated by Hawkfrost to send away Stormfur and Brook from RiverClan, though was finally free from him after his death; she did grieve for her brother. Despite Mistystar learning about her not believing in StarClan, she demoted Mothwing as an elder; however, Mothwing retained her position after an omen. Following the Great Battle, Mothwing revealed that she believed StarClan existed, but questioned their guidance. She was named by a codebreaker by the impostor, eventually being exiled from RiverClan for her birth and took refuge in ShadowClan, becoming a medicine cat for the rebels. Although she was allowed back into RiverClan, Mothwing chose to remain in exile and joined ShadowClan under Tigerstar. She later returned to RiverClan following the defeat of the impostor. After returning, Mothwing became the mentor to Frostpaw, and begrudgingly took up leadership of RiverClan following the sudden deaths of Mistystar, Reedwhisker, and Curlfeather. She acknowledged that RiverClan needed help from the other Clans with their current situation seemingly at odds with StarClan.