Not much is known about Izzy, other than that Lana owns him as a pet. He tends to scurry around the house, as evidenced when Lincoln looked for a quiet place to read comics in his underwear. The only known fact about Izzy is that he seems to have replaced Lana's former pet frog, Seymour.
Izzy is a small green lizard, with a long tail, and a sharp tongue.
In the Polish dub, her name is "Szczurka" from "Jaszczurka", which means "Lizard", and the literal translation of "Szczurka" would be "Zard".
Izzy is female in the Polish dub. However, in the U.S version Izzy is male.
Izzy is female in the Hebrew dub as well, however, unlike the Polish dub, he keeps his original name.