Trick or Treat Scooby-Doo! introduces Coco Diablo as a criminal fashion designer and a love interest for Velma Dinkley. Velma's evolving LGBTQ+ characterization in recent Scooby-Doo productions is highlighted in the film, creating new dynamics within the gang. Coco Diablo voice actress Myrna Velasco has a talent for voicing tough, intelligent characters in various TV shows and movies.

In the direct-to-video animated movie Trick or Treat Scooby-Doo!, Coco Diablo (Myrna Velasco) is introduced as a love interest for Velma Dinkley (Kate Micucci). Trick or Treat Scooby-Doo! from 2022 is part of a long line of Scooby-Doo direct-to-video movies, which are notable for their increased production values and higher stakes. Trick or Treat Scooby-Doo! sees the gang invited to a Nepalese ski resort where they solve a crime with Coco Diablo as the perpetrator. The film then jumps a year into the future and finds the gang bored with the ease...