Holt Hyde

Holt is the son of Mr. and Mrs. Hyde. He thinks he is 16 years old. Highly expressive and extremely passionate about music, Holt is the alter ego of Jackson Jekyll and, until "Dueling Personality," is unaware of his other half. He only appears at night and has never seen the sun, despite his best efforts. Recent information implies the transformation might be related to loud music, or is just another way to make it occur. In the books, he is known by DJ Hyde and only appears when the temperature is high. The books provide more background on Jackson and DJ as their mother explains they are actually the grandsons of the original Dr. Jekyll. The tonic, however, combined with his DNA and was passed down to his descendants. Jackson and Holt's father was driven mad from this and is in an asylum. In the second book, he learns about his alter ego through Melody and Brett's documentary on RADs. He has a pet chameleon named Crossfade, who, when around Holt, is red. Holt makes his first appearance in "Hyde and Shriek." He is distressed to learn that Jackson is his other half in "Dueling Personality," calling Jackson a normie and a dork. He is voiced by Cindy Robinson.