Leo

Dr. Jonatan Ohnn was a scientist at 1109's Alchemax where he was the primary scientist working on the collider (this universe has no Dr. Octavius). However, he developed an unhealthy obsession in tapping into the dark matter energy's "true potential", saying how it could be used to achieve something greater. His obsession only grew stronger when he realized working with the substance in close proximity and prolonged exposure had had an effect on his body. Black, ink-like stains spread across his body, eating at him inside and out. It grew difficult to hide them... He was terminated from Alchemax once it was discovered he had taken some of the work to his home to experiment on privately, with no intention of sharing his discoveries. Ohnn broke back in, intending to steal all his work from the lab. Alchemax workers attempted to stop him and, in a "William Birkin"-style moment, Ohnn merged his body with the remaining dark matter, not wanting to lose his work. He then proceeded to raid, and in the process, destroy, Alchemax... the scientists that didn't die or escape were taken by Ohnn, to be used as fodder for his experiments.

Currently known as "The Void", his form is primarily made up of dark matter which he can manifest into limbs and such. He has a shattered, but fragile mind, often flip flopping between his usual cold and observant self to manic and frantic. He doesn't like when people stare at him, often lashing out physically if he's in his frantic state of mind. Prolonged staring into the Void can cause headaches, ringing of the ears, and nosebleeds. He now roams the multiverse to consume all dark matter to reach his full potential, not unlike that of ATSV Ohnn.