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"Welcome to Gamma World!"

The Leader is a massive-headed supervillain obsessed with creating gamma creatures like the Hulk.


I come to you with a message, and that message is...don't be scared. The Gamma dome that has formed in the American Southwest, it is no threat, it is a promise. It is going to change the world, for the better. You are weak. You suffer in your small lives and fragile bodies. You have plunged the world into darkness because of your faults. But I am here to save you. I will remake the world in my image, I will remake you in my image. You will be perfect me. And I will think your thoughts for you. The Gamma energy will grow to envelope the Earth, you will all be transformed. Your power will be my power. Accept your future, for I am your Leader! Welcome... to GAMMA WORLD!

-- 'The Leader' src

Early Life[]

Once a menial laborer, Samuel Sterns was working as a janitor in the lab where Bruce Banner was working on a gamma project, and it was there that Sterns was exposed to gamma radiation. And while weak but brilliant scientist Banner was transformed into the Hulk, the low-functioning Sterns was transformed into a superhuman genius.[1]


After the massive breakouts, he took over The Cube with help from Abomination and Absorbing Man and turned it into his own base of operations where he made use of the Gamma radiation research to further his own goals. After a successful test of his "Gamma Dome" the Leader left the Cube and allowed the Avengers to destroy the generator while he escaped with his two fellow Gamma mutants.

Gamma World[]

Later, Leader plans to blanket the Earth in Gamma Energy causing anyone exposed to it to become Gamma-based monsters. Unfortunately, it couldn't affect Thor or Doc Samson (who had already been exposed to it). Though the generator at the Cube was destroyed, Leader had another one stationed in Las Vegas. As another Gamma Dome expanded, everyone in the city were turned into Gamma Monsters including the Avengers and S.H.I.E.L.D. agents.


The Leader's battlesuit

When Thor and Doc Samson had been taken prisoner, Leader found out from Thor that Gamma Energy doesn't affect Asgardians and unleashes Abomination on him. When Thor does regain Mjolnir, Leader summoned Absorbing Man who ended up absorbing the properties of Mjolnir, mockingly saying that he planned for it, that he has planned for everything. Then the Hulk came crushing through the floor.

When Hulk and Hawkeye, (immunized from the effects of the Gamma energy by Banner earlier), arrived, Leader had Abomination fight Hulk while he and the Gamma-powered Avengers attacked Hawkeye who launched special arrows that cured the infected Avengers before fighting The Leader. After Hulk had defeated Abomination by sending him flying out into the desert and Thor defeated Absorbing Man by sending him straight up in the air, Leader's battlesuit was shattered by the now virtually indestructible Absorbing Man as Hulk lifted the Gamma Generator off the roof causing the Leader's head to expand as he threw it into space. The next day, Leader and Absorbing Man were taken into S.H.I.E.L.D. custody with the other Gamma-based villains to the new prison facilty after four of them were compromised when the Breakout happened.

Assault on 42[]

The Leader helped the Avengers and other prisioners in Prison 42 when Annihilus and his Negative Zone Bugs attacked them inside the prison. He ranted about voices in his head while fighting. Abomination helped him get to the control center, where he disrupted the sheilds protecting Annihilus. After the shields were disrupted, the Avengers took down Annihilus. The pain in the Leader's head went away. The Leader was glad that the fight was over. 

After the battle, Leader was either placed back in his cell or taken to Hydro-Base.


Leader 01

The Leader is physically unimposing and of short stature, other than the enlarged head and green skin he looks human.


The Leader can be summed up with one word, arrogant. His self-proclaimed (and justified) genius leaves him with little doubt that he can outsmart any and everyone else in the world. This often leads him to claim that any advantage an enemy gains, is gained because he allowed it. It is hard to tell whether that is a bluff or not, though it is possible that it is not a bluff.

Despite this enormous ego, the Leader rarely, if ever allows it to cloud his judgement and remains calm and collected for most of the time in any situation.



Despite being enemies the Leader views the Hulk as a kindred Gamma spirit, and genuinely seemed to want him on his side during the events of "Gamma World".


The Leader has a professional relationship with his fellow Gamma mutant who respects the Leader's intelligence and generally does not mind following his orders. The reasons for Abomination's undying loyalty to The Leader is never explained, however it could be The Leader offered Abomination a place in "Gamma World" if they were to have succeeded. If any deal between the two was made in the past, it could very well be why Abomination is so loyal and committed to serving The Leader. It should be noted that Abomination never once questions The Leader's decisions or orders. This is most evident during The Assault on 42, when The Leader denies an escape attempt to Ms. Marvel. While having an opportunity to escape, Abomination stays by The Leader's side. Professionally, Abomination acts as The Leader's bodyguard, being his main source of muscle to back-up his threats and to combat the Hulk. Abomination seems to genuinely care for The Leader's safety, carrying him when fleeing from Annihilus during the assault on 42.

Powers & Abilities[]

  • Genius Level Intelligence: The Leader is as intelligent as The Hulk is strong and is a polymath through and through, strategy, science, psychology and much more he has at his disposal. In contrast to his vast intellect the Leader has limited (if any) martial abilities, relying on his cunning, devices and allies to handle the cruder aspects of a plan. He possesses enhanced intuition, pattern solving, information storage and retrieval, and logical and philosophical structuring. His ability to predict probable outcomes of tactical and strategic scenarios is so advanced that it borders on clairvoyance. He can read around 4,000 words a minute, and can and can probably think just as fast. The Leader has a perfect memory with the ability to recall every moment since the accident that gave him his powers. In short, his brain is like a supercomputer. The Leader possesses knowledge of genetics, physics, and robotics, and has designed a large number of sophisticated weapons, vehicles, computers, androids, and synthetic humanoids. He is particularly adept at genetic engineering and manipulating radiation for various nefarious purposes.[1]
  • Mind Control: The Leader also can control the minds of people who have been turned into Gamma Monsters. He uses his head band to talk to them when he is far away from them. It was shown when Wasp got affected by the Gamma Energy in The Cube and got turned into a mutant wasp called "Gamma Wasp" and Leader commanded her attack Doc Samson and the other Avengers.



  • Leader's Mind Control Head Band:
  • Leader's Battlesuit: The Leader makes use of various mechanical contraptions and Gamma radiation technology in his schemes, he also used a robotic combat suit in his confrontation with the Avengers.


Notes and references[]