Carbon Costume

In Trick or Treat Scooby-Doo!, Coco Diablo (voiced by Myrna Velasco) is a fashionable costume maker who sells her work to criminals with ill intentions, even those dedicated to taking down Shaggy and the gang. Coco develops a soft spot for Velma, who harbors a crush in return. This makes the notion that Velma is queer officially canon.