Some TMNT stuff really isn't for little kids.
Like many characters in the Teenage Mutant Ninja Turtles Adventures continuity, Krang started out very similar to his cartoon counterpart. In these initial issues, the only major difference was the color of his android body.
Later issues established him as the ruthless warlord that the cartoon only hinted at. One of the atrocities he committed was the destruction of Huanu, the homeworld of Wingnut and Screwloose. Early on, he stopped using his android body and moved around on the three-wheeled chair he used before Shredder built the body for him.
At one point, Krang stuck himself over the Shredder's head, controlling his body.
In the Random House audio tape versions of the comics, Krang had a much deeper and menacing voice than his animated incarnation.
This version of Krang made a crossover cameo appearance in All Tomorrow's Yesterdays.