Curt Connors

Curtis "Curt" Connors is a fictional scientist and super-villain featured in the Spider-Man multimedia franchise. The character was created by writer Stan Lee and artist Steve Ditko and first appeared in Amazing Spider-Man #6 in November, 1963. . The first television version of the character was actually named Curt Connor, and appeared on the 1967 cartoon series Spider-Man in the episode, "Where Crawls the Lizard". On that show, he was voiced by Gillie Fenwick.

The character's first appearance under his proper name was the 1994 Spider-Man cartoon series. He was the very first villain featured on the series and was introduced in the pilot episode, "Night of the Lizard". He was voiced by Joseph Campanella.

Biography
Doctor Curtis Connors was a scientist, and also a teacher at Empire State University, New York City. Curt had lost an arm in an accident, and decided to experiment with reptilian cells and a device called the "Neogenic Recombinator" in order to attempt to re-grow the arm. The operation was initially successful, but a side-effect meant that Curt transformed into a humanoid reptile himself. He then planned to use the recombinator to create a new race, which would make all humans similar to him. Spider-Man stopped him and used the recombinator to transform the Lizard back into Curt.

Despite this, in future, Curt would continue to transform into the Lizard with a reptilian mind if he was subject to stress.