Formerly known as Emil Blonsky, a spy of Soviet Yugoslavian origin working for the KGB, the Abomination gained his powers after receiving a dose of gamma radiation similar to that which transformed Bruce Banner into the incredible Hulk. As a result he was permanently transformed into a massive green-skinned monster whose physical power was equivalent to, if not greater than, that of the Hulk. While he was able to maintain his normal level of self-control and intelligence after this transformation, he is unable to return to human form.
Given his gamma-spawned origins, Blonsky blames his condition on Banner and his alter ego, the Hulk. The Abomination and the Hulk have clashed on numerous occasions, with Blonsky perpetually playing the role of the aggressor. Although Blonsky occasionally gains the upper hand in their battles, the Hulk manages to triumph in the end. But not always; the Abomination is one of the few who can lay claim to victory over the green-skinned goliath.
In recent years, it was revealed that his hideous new visage had served to alienate Blonsky from his ex-wife, Nadia. Coupled with constant defeats at the hands of the Hulk, this has driven Blonsky nearly insane in his hatred for Banner. The Abomination also grew incensed upon learning that Banner had married Betty Ross, the daughter of General "Thunderbolt" Ross. With the loss of his wife, Blonsky figured it is only fair to him that Banner should lose Betty. Out of jealousy, he caused the apparent death of Bruce Banner's wife Betty. While she was recovering from radiation sickness caused by exposure to the gamma radiation within Banner, he poisoned her with his radioactive blood, causing Banner and his associates to believe that her close proximity to the Hulk had given her a fatal case of radiation poisoning. Banner later exposed the Abomination's role in Betty's seeming death, and defeated him in combat.
Not only had his grand scheme failed, but Banner also forgave Blonsky. The Abomination could not comprehend and endure his enemy's absolution, and his moment of triumph was twisted into crushing defeat. Blonsky realized he had become what he abhorred the most - it was he who was the rampaging, inhuman monster; not the Hulk as he had religiously believed all these years.
Months later, the still-grieving General Ross manipulated the Hulk into attacking and almost killing Blonsky. The Abomination was taken into custody by the military; as punishment, he was forced to watch a film loop of himself and his wife prior to his transformation, making his incarceration a constant reminder of what he has lost.
Recently, the Abomination was among the first victims murdered at the hands of the Red Hulk.