Real Name Samuel Sterns
Occupation
  Would-be world conqueror; former laborer  Place of Birth
Boise,  Idaho 
 Known Relatives
Madman (brother) 
 Group Affiliation
Intelligencia  
 Education
Unfinished  high school education 
  Powers
Superhuman  intelligence, telepathy, psychokinesis 
  Other Info
Working as  a laborer in a government-owned chemical research facility in the  Nevada desert, Samuel Sterns was caught in an explosion when a cylinder  of radioactive waste he was moving unexpectedly blew up. Recovering in  the hospital, he discovered he had an insatiable thirst for knowledge  and rapidly read through every book he could lay his hands on. 
Weeks later, Sam underwent a physical  transformation as well: his skin turned green and his skull expanded  upwards. Calling himself the "Leader," he organized a spy ring to steal  scientific secrets, only to find the Hulk an  impediment to his plans. Desiring to study the Hulk, he first sent the Chameleon  and then synthetic "humanoids" to capture the Hulk. This began what  would become a long-standing feud between the Leader and the Hulk.  (Click on the highlighted names above to learn more about the  characters.)
Time and again,  the Leader would use others to battle his foe. Some of those he has  employed over time have been the Rhino, the Glob, Jackdaw, and Arsenal.  He even worked with General Thunderbolt  Ross on one occasion. (Click on the characters' names above to learn  more about them.)
One time he forced the Hulk to raid the Watcher’s home in the Blue Area of the Moon for the advanced technology within. The Hulk successfully retrieved the Ultimate Machine (a.k.a. the Globe of Ultimate Knowledge), but when the Leader accessed the millions of years’ worth of information within the Machine, even his advanced mind was overwhelmed and he collapsed to the ground, seemingly dead. (To learn more about the Watcher, click on his name above.)
However, he was alive.  Unfortunately, later in a lab accident, the Leader was left paralyzed  for a prolonged period. During this time he initially used a  mind-controlled Rhino to do his bidding. After some time, Leader finally  regained the use of his limbs by deliberately reverting back to the  form of Samuel Sterns, whose amnesiac form then followed subconscious  orders to infiltrate Gamma Base where he exposed himself to radiation to  transform back into the Leader. This usurping of the Base, like the  previous time, was brought to an end by the combined forces of the Hulk  and Doc  Samson. (To learn more about Doc Samson, just click on his name  above.)
Many of the Leader’s  schemes have involved plots to transform others into gamma-mutates under  his control. One time, on the pretext of seeking a cure for the Hulk,  he duped Dr. Rikki Keegan (a school friend of Banner’s) into obtaining  blood samples from his foe. He used these to contaminate Manhattan’s  water supply, causing a “Green Flu” which would mutate those it did not  kill. However, Keegan mutated into a Leader-like being more powerful  than her creator, and in order to prevent her from telekinetically  wrecking all his equipment, the Leader was forced to administer the  antidote, which was then used to cure the rest of the victims.
Later, the Leader traveled back in time  to Earth’s primeval past to alter mankind’s evolution so that all  humanity would become gamma people. However, this plan brought him into  conflict with the Avengers  as well as his old adversary, and he apparently plunged to his death  into a prehistoric volcano. However, thanks to a hidden teleportation  device, he survived. (Click on the highlighted name to learn more about  the Avengers.)
Eventually the  Leader’s mutation destabilized, and he reverted back to his human form.  Seeking to regain his heightened intellect, he drained gamma radiation  from Rick  Jones (who at that point was suffering from Hulk-like  transformations). Stern became the Leader once again, but now with a  psychic link to Jones. Using new operatives Half-Life, Rock, and Redeemer, the Leader lured the  gray Hulk to Middletown, Arizona, where he detonated a gamma bomb while  the Hulk was holding it above his head. Believing the Hulk to be dead,  the Leader gathered together the handful of Middletown survivors and  formed them into the Riot Squad. Sometime later, after  discovering the Hulk had survived, the Leader assisted him in battling  Sterns’ brother, now the superhuman known as Madman. (To learn about the  characters above, just click on their highlighted names. Note: Beware of   the background of the picture of Rick Jones' bio page--woman in a  revealing dress.)
Some time later, he apparently controlled Omnibus and created a terrorist organization called “The Alliance.” With The Alliance, Leader sought to destabilize the world and plunge it into war, only to have the Hulk thwart him once again. (To learn about Omnibus, click on the highlighted name above.)
After some time,  Leader made himself a home in Gammaworld where he encountered  Hulk's former allies, the Warbound.  Wanting the Oldpower of Hiroim,  the Leader used the townspeople to create a new monster called Horde to battle them. Ultimately, Hiroim sacrificed  himself to stop the Leader, and the Oldpower was kept out of his grasp.  (Click on the highlighted names above to learn about the characters,  team, and/or power.)
Even though the Leader founded the Intelligencia, he is content in letting M.O.D.O.K. call the shots so long as their ultimate goal is achieved.
To learn more about the Leader, click on the following link, http://marvel.com/universe/Leader_%28Samuel_Sterns%29.
I read that Tim Blake Nelson, who plays Samuel Sterns in The Incredible Hulk movie, said that he has signed up for two more Hulk movies, and to play as Leader. However, there is no evidence yet that they are going to be actually making those movies.

















