Lizard

"I spent my life as scientist trying to create a world without weakness, without outcasts. I sought to create a stronger human being but there's no such thing, human beings are weak, pathetic, feeble minded creatures. Why be human at all when we can be so much more? Faster, stronger, smarter, this is my gift to you!"

- The Lizard The Lizard (Curtis "Curt" Connors) is a former scientist at Oscorp Industries. He was Richard Parker's partner and colleague, and was working on the Lizard Serum with him. After Parker's death, Connors befriends his son, Peter.

The Lizard is a perfect example of science gone awry. One could blame Connors for creating the Lizard, but no one should blame him for the actions the Lizard does. When his reptilain mind takes over, Connors loses complete control and there only remains the savage, powerful, cross-species monstrosity known as the Lizard.

The Amazing Spider-Man
Some many years ago, Connors lost his right arm up to its elbow. As would be expected, this greatly affected him emotionally, and so Connors endeavored to find a "cure".

Dr. Connors soon came to be a scientist working at Oscorp Industries, and he met Richard Parker, a fellow employee, who wished to help Connors in his search for a cure. Though, the day that Richard and his wife, Mary, mysteriously went missing, Dr. Connors decided to totally shut down his work indefinitely. Years later, while working with some interns at Oscorp Tower, Curt Connors encountered Peter Parker, whom impressed him due to his knowledge beyond most teenagers. During this encounter, Connors did not find his name, but just thought him to be another intern.

A few days later, Peter came to Dr. Connors' house. Connors recognized Peter from the other day and, assuming he wanted an autograph, was quick to ask him to leave. However, Peter introduced himself as Richard Parker's son, and the scientist invited him in. They discussed the work that Peter's father and Dr. Connors were in, and why Connors had not approached the Parkers before. Peter proceeds to give the scientist his father's "decay rate algorithm", something he had been working on before his disappearance.

Later, Dr. Ratha, a colleague of Connors', approaches him, requesting him that he quickly find a cure for their dying boss, Norman Osborn. Dr. Connors agreeing to do what he can, Ratha leaves.

The following day, Peter met again with Dr. Connors in the scientist's laboratory. Peter proceeded to enter the decay rate algorithm in to a computer, with a hypothetical mouse being the target, but it fails to work at first. Peter continues to do it, finally getting a successful result that enables the mouse, named Fred, to grow an extra limb. Dr. Ratha approaches Connors, having seen the effects of Peter's decay rate algorithm, demanding that he starts human trials straight away, if they're to treat their dying employer. At first, Dr. Connors refuses to test people with the formula, causing him to be fired. Dr. Ratha decides to use the serum at a Veterans Administration hospital, under the guise of a flu shot. Connors, desperate to impress, injects the formula in to himself instead. Nothing happens immediately, and Curt falls asleep. When he awakes, his limb has fully regrown.

The scientist hears about Ratha's plan to inject the formula as a flu shot, and raced to intercept him. Along the way, Dr. Connors' arm, the one that regenerated, started to turn green and scaly. Just as he reaches the Williamsburg Bridge, he fully transforms in to a giant, mutated man-lizard hybrid. Unable to control his alter ego, Connors flips cars over the side of the bridge, the occupants only to be saved by Spider-Man.

The Lizard goes to the sewers, near to where Dr. Connors has constructed an underground lab. Spider-Man, having the suspicion that the Lizard is Dr. Connors himself, follows him. He proceeds to take a picture of the Lizard, via means of carefully-placed webs, but the camera is destroyed by the Lizard, not before he reads the camera's owner's name. Dr. Connors, as the Lizard, follows Peter Parker to his school. After ripping through the school to find him, the two finally engage in a battle. While Spider-Man's webs subdue the Lizard, they ultimately fail to do any harm.

After a quick battle, the Lizard runs through the streets of Manhattan. Aiming to reach Oscorp Tower, he finally gets there, having turned some police officers that subdued him in to lizard-men. The scientist-turned-lizard tries to get a machine that will release a toxic cloud, causing all humans to turn to a lizard-hybrid, like him. Gwen Stacy, his protégée, tries to stop him from taking it, but he wins over, not wanting to harm her.

Dr. Connors climbs to the top of Oscorp Tower, planning to release a gaseous cloud turning the human race in to lizard cross-species. Before he can do this, Spider-Man arrives. The two proceed to fight. George Stacy, captain of the police force, assists Spider-Man, knowing his true identity. Captain Stacy uses a shotgun to injure the Lizard, but this does next to nothing to the huge beast. Dr. Connors, not having control of his mind, stabs the cop with his claws.

Meanwhile, Spider-Man finally reaches the peak of the tower, and is able to replace the machine with an antidote to Connors' serum. Peter releases the cloud, causing the Lizard to turn back to an injured Dr. Connors, as well as changing the former police that became cross-species.

Following the ordeal, Dr. Connors is locked up in Beloit Psychiatric Hospital. He is visited by a mysterious man, seemingly familiar to the scientist. The man asks if Connors told Peter the truth about his father, but Curt demands Peter be left alone before the man mysteriously disappears.

The trial of Dr. Curt Connors came to an end as the former geneticist for Oscorp Industries was found guilty on all twenty counts for which he was indicted, including the murder of NYPD Captain George Stacy. Connors and his attorney, Anne Weying, were unable to convince the jury that he was not responsible for his deadly actions while transformed. His defense that he only injected himself with the serum that changed him into the Lizard to prevent Oscorp Industries from experimenting on innocent civilians did not sway the jury.

Next stop: Rikers. But even that is controversial. Ravencroft Institute for the Criminally Insane has said their facility is better served for housing and studying a prisoner such as Connors, but the judge has yet to rule on where Curt Connors will spend what is likely to be the rest of his life.

The Amazing Spider-Man 2
Lizard didn't make an actual appearance in this film, but he was mentioned numerous times by Peter, Harry, and other Oscorp members.

The Amazing Spider-Man
After months at Beloit, Spider-Man appeared at the hospital with an odd proposition: Spidey would help Connors escape if Connors helped develop a serum to control the cross-species outbreak and save Gwen Stacy from infection. Connors agreed, sensing an opportunity for redemption. But he made Spider-Man promise not to let the dreaded Lizard resurface.

Spider-Man and Connors worked together to develop the serum. After their first try failed miserably, Spidey questioned Connors' true intentions. Suspicion turned into a tense confrontation, but Connors discovered a startling revelation: Spider-Man was the key to curing the outbreak. Connors used Spider-Man's DNA to create a new, improved serum. For the first time in a while, things were looking up for Curt Connors, but not for long when the infected, yet madden Smythe captures him to lure Spider-Man. While trying to escape, Spider-Man sacrificed his life to save Connors, so he could continue to create more cure.

As all people of New York are infected, and Smythe unleashing his robots to kill all of the people in the city, a desperation forced Connors to make a terrible decision: he had no other choice but to transform into the Lizard one final time and use its strength to smash Smythe's robot army. As the Lizard, Connors fought as Spider-Man's teammate. But after Smythe's defeat, the Lizard's reptilian brain clawed back in control. However, as a battle for the ages ensued, Spider-Man found the chance to inject the serum into Connors and revert him back to human form.

As promised, Spider-Man returned Connors to Beloit, with a newfound respect for this scientist who helped save Gwen and the people of New York. Today, Connors still wrestles with his inner demons, but his path to redemption has begun.

Powers

 * Reptilian Physiology: After injecting himself with the serum, Dr. Curtis Connors transformed his own physiology to alter resulting in him becoming a large lizard-like humanoid. This gave him superiority to humans in every physical and mental way, and also gave him new abilities he did not have as Curtis Connors. As his villainous incarnation known as the Lizard, Connors gains the following abilities:
 * Superhuman Strength: The Lizard has remarkable superhuman strength, able to lift weight that no human ever could. The Lizard's physical might is so great, that he is obviously stronger than even Spider-Man himself. He has shown feats as to be able to tear through steel and metals effortlessly, overpower multiple men with ease, and even restrain Spider-Man without showing any struggle.
 * Superhuman Speed: He has shown the ability to travel at great speeds.
 * Superhuman Endurance: The Lizard's skin, bone, and muscle tissue are denser and tougher than ordinary humans. The Lizard is even arguable tougher than Spider-Man showing to have great endurable body. It took multiple S.W.A.T team men with automatic weapons to bring him down, he can fall from great heights, and even take blows from Spider-Man without sustaining much damage.
 * Superhuman Acrobatics: In his Lizard form, Connors possess a level of agility superior to even the finest of human athletes. His agility is on par with the likes of Spider-Man. He was able to climb all the way to the top of Oscorp Tower very quickly, jump amazing heights, and coordinate his body with unnatural equilibrium, dexterity, and flexibility and his Reflexes of the Lizard is capable of reacting much better than ordinary human beings. He can dodge incoming attacks and projectiles with great swiftness, respond to surprise attacks from Spider-Man with ease, and even showing he could out-react Spider-Man on occasion.
 * Superhuman Stamina: He can do intense physical activity for long periods of time without being fatigued.
 * Superhuman Senses: The Lizard has superhuman acute senses. He has shown that he was able to see farther than ordinary, he could smell Gwen's sent while only breathing in twice, and he could even hear Spider-Man from a great distance away.
 * Regenerating Healing Factor: This was the only power that Doctor Connors wanted. But when things went wrong, he still received Regeneration and all of its benefits. He can heal much quicker than even Spider-Man, and the true extent of his healing isn't known. The Lizard could heal from multiple gunshot wounds within a few seconds, regrow a lost tail when Spider-Man ripped it off, and he could even regrow his lost arm. Even despite being partially frozen the Lizard was able to fully heal from shotgun wounds within seconds.
 * Claws: The Lizard's claws are extremely sharp and dangerous. Not only can he climb up walls with them, but he can penetrate dense objects. He stabbed Captain Stacy easily (despite his protective vest) he was able to harm Spider-Man dispute his superhuman durability, and can carry out lethal attacks with them.

Abilities

 * Genius Intellect: Connors has a genius-level intelligence and is a world renowned herpetologist.

Trivia

 * In comics, Connors had a wife and son; his wife Martha died of cancer and he killed his son, Billy, as the Lizard. Before Billy died, he told his father that he always knew Connors would kill him. This is likely because Connors had transformed into the Lizard before in this comic as well, and had traumatized Billy.
 * The darkened figure Connors saw in his cell late at night was credited as "Man in the shadows" in the film who is later identified as Gustav Fiers in the sequel.
 * Connors is one of five people who know Spider-Man's true identity; the others being Alistaire Smythe (deceased), Green Goblin, George Stacy (deceased) and his daughter (deceased). He and Green Goblin are also the only villains that know his identity.
 * This version of Lizard lacks a snout and clothing, although he had a lab coat later on in a brief scene.
 * Interestingly enough, in the first appearance of the Lizard in the comics ( The Amazing Spider-Man (vol. 1) #6 ), the character lacked a snout.