Steven Universe, Where Are You!

Steven Universe, Where Are You! is a 2015 crossover TV special between Steven Universe and Scooby-Doo, Where Are You! animated by Rebecca Sugar.

Summary
Steven and the Gems meet Scooby-Doo and the gang to solve the mystery of the missing gems they have found. All they found was a real villain!

Steven Universe

 * Steven Quartz Universe (voiced by Zach Callison) – The main character, the youngest gem member who's 11 years old (pilot), 12 (season 1) and 13 (season 1.2) of the Crystal Gems, and the only male on the team; his gem stone is a rose quartz that he inherited from his mother, Rose Quartz. His gem, embedded in his belly button, summons a shield which may also act as a projectile.
 * Garnet (voiced by Estelle) – A physically imposing, disciplined warrior, Garnet is the de facto leader of the group (in Rose's absence); her gemstone is a red garnet which is embedded into each of her hands. She is twice the height of Amethyst, and has dark, reddish-hued skin and a large black afro.
 * Amethyst (voiced by Michaela Dietz) – The impulsive and passionate "wild child" of the Gems; her gem stone is an amethyst which is embedded over her chest. She has violet-colored skin and pale purple, almost white hair to her ankles and she appears to have a slight cleft in her lip which makes her appear more catlike. Activating her gemstone summons a studded energy whip. Amethyst is very joyous and carefree, and despite being a magical entity who does not need to eat or sleep, she does so because she enjoys it. She loves to roughhouse with Steven and trade jokes. While the other two tend to support Steven in words, Amethyst often takes concrete action that ensures Steven's involvement.
 * Pearl (voiced by Deedee Magno Hall) – A precise and intellectual strategist, Pearl is the mental powerhouse of the Gems; her gemstone is a pearl which is embedded in her forehead. Activating her gemstone summons a teal-colored long-handled Glaive. She has pale skin and wears a blue and green tutu in keeping with her dainty, ballerina-like physique.
 * Connie Maheswaran (voiced by Grace Rolek) – A girl around Steven's age. She is usually seen with a book in hand and appears to be intelligent yet introverted and lonely. She moves frequently so she is unable to build lasting friendships. She is Steven's friend and love interest.
 * Rose Quartz (voiced by Susan Egan) – Former leader of the Crystal Gems and Steven's mother, who gave up her physical form giving birth to him.