Jhonen Vasquez (born September 1, 1974), also known by his pseuonyms Mr. Scolex and Chancre Scolex, is a cartoonist living in Los Angeles, California, United States. He is the creator of a number of alternative comics published by Slave Labor Graphics including Johnny the Homicidal Maniac, I Feel Sick, Fillerbunny, Bad Art Collection, and Squee!, as well as the creator and writer of the short-lived cult animated television series Invader Zim. Many of his works have developed cult followings.