Heckyl is a former alien outlaw who alongside Snide took leadership of Sledge's Crew. After his reformation, he was appointed Keeper of the Dark Energem and became the Dino Charge Dark Ranger, later traveling to another dimension to help Cosmic Fury Rangers. On Heckyl's neck was a tattoo that combined him and Snide. When it glowed, one transformed into the other. He lost this tattoo when he and Snide were split apart. He dated Squillia while undercover. His weapon/morpher is Spino Boomerang.