NegativePro

Negative Shenanigans
In NegativePro's early Jonaverse days, he made comics depicting himself pulling off weird schemes around Jon-Prime and sometimes the other artists. Usually these schemes made absolutely no sense, such as going to outer space to escape Rosajon (Even though she lives there)

Booru Voodoo (Good-bye Humanity, Hello Sonic OC)
NegativePro was one of the earlier people to get afflicted with Booru Voodoo along with Winter. The curse transformed him into something he never wanted to be, a fluffy Sonic the Hedgehog OC. While he doesn't hate the Sonic OC community, he avoided them because he was afraid of being bullied and discriminated against due to being harassed for drawing them while he was in High School.

He also gained the power to control electricity and now fights crime in the Jonaverse along with Winter and the other artists as a BooruVoodoo Avenger

The Wandering Wooper
In a majority of NegativePro's comics, there is a Wooper placed somewhere at random. This is Negative's way of leaving a mark on his work, kind of like a signature.