Josh Diaz is a junior at BHHS in Season 5. Josh is a Chimera converted by the Dread Doctors with the genetic makeup of a werewolf and an electric eel. Like the other Chimeras, Josh becomes feral and dangerous once he is transformed. After being declared a failure, he is then killed by Theo Raeken. Josh is then brought back to life by Theo along with Tracy Stewart, Hayden Romero and Corey Bryant so Theo can form his own Pack. Josh rediscovers his humanity, becomes disillusioned with Theo's leadership and decides to leave, but he is then killed once again by Theo so the latter can steal Josh's power.
Josh is a thrill seeker. He likes to party at clubs, drinks and takes drugs recreationally. After coming back to life, and due to Theo's grooming, Josh becomes aggressive, losing his ability to feel towards others and becomes subservient towards Theo, his 'Alpha'. Josh starts to feel again after Corey prevents a hellhound from wounding him, then shows great worry for Corey's well-being when the latter is badly burned afterwards, and before his second death, regains his volition and ability to think for himself.
Josh can shapeshift into a creature at varying degrees. Alongside the traditional claws, superhuman strength, speed and agility and an accelerated healing factor, Josh can manifest overlarge front teeth, akin to a weasel or an otter and their eyes glow a royal blue.
Similar to a Thunder kitsune, Josh's spark of power is electrical-based from his eel makeup. He can detect, use and manipulate electricity of his own will. He can draw it from power sources e.g. electrical tower, cables and store it within his body. Once they have siphoned power, Josh can then electrify anything he touches.
Josh can use his electro-physiology to able to tap into electromagnetic sources.