Curt Connors

The Lizard is a fictional comic book super-villain whose actual name is Doctor Curt Connors. He is featured in comic books published by Marvel Comics and is one of the more well-known foes of the super-hero known as Spider-Man. Curt Connors also appeared in both of the live-action iterations of the Spider-Man film series. In the original trilogy, he was played by actor Dylan Baker, though this version never became the Lizard. In the 2012 film Amazing Spider-Man, Curt Connors was presented in all of his lizardy scaliness and performed by actor Rhys Ifans.

Overview
Curtis "Curt" Connors was a scientist who lost his arm in a war. Moving back to the United States, he set up a small laboratory in the Florida Everglades where he lived with his wife Martha, and young son Billy. He conducted experiments on cellular reconstruction using reptile DNA hoping to divine a process through which amputees might be able to regenerate missing limbs. As most scientist are wont to do, he tested the process on himself first. His arm grew back, but it also turned him into a giant scaly lizard monster. As the Lizard, Curt Connors became an animalistic monster and was only defeated after going up against the neophyte superhero, Spider-Man. After this initial defeat, the Lizard reverted back to Curt Connors.

Connors turned back into the Lizard on numerous occasions, and in each instance, found himself once again at odds with Spider-Man. He would always return to his human persona, whereupon Connors would commit himself towards finding a cure, but the shadow of the Lizard always loomed over him. With each passing year, the persona of the Lizard grew more savage and Connors' humanity went into sharp decline. He began to evolve physically as well, growing larger and even more animal-like.