Devil Hulk is an alter-ego of Bruce Banner, better known to the world as the Hulk - unlike the mainstream Hulk, who although brutish is also capable of acts of kindess, Devil Hulk is pure malevolence and embodies all of the Hulk's rage at being neglected and abused by the world: the sole aim of Devil Hulk is to break free from his (symbolic) chains and take command over the Hulk so as to destroy everything and everyone that Banner holds dear.

Devil Hulk is one of the largest alter-egoes of the Hulk but is still slightly smaller than most depictions of the Hulk's second inner-antagonist: known as Guilt Hulk - although rarely seen Devil Hulk is depicted as a large and frightening creature of destructive intent, for now the Hulk has found ways to keep this monster from taking over his mind but for how long such a victory can last given the tragedies that befall Hulk on a daily basis is a question no one can answer.. perhaps not even the strength of the Hulk is enough to keep the beast within from finally breaking free..