Serena Valentino is an American comic book writer, author, and storyteller. She is best known for creating the comic book series Gloomcookie and Nightmares & Fairy Tales, which established her distinctive voice in sequential art and narrative fiction. Valentino has also authored the Villain novels published by Disney Press, a series that has earned her critical acclaim for her approach to storytelling. Through these works, she has developed a reputation for exploring darker and more complex narratives within popular fiction.