HEAD WRITER * Jhonen Vasquez * Kevin Manthei * Kevin Manthei * Mark Tortorici * Richard Horvitz - Zim / Delivery Guy * Rosearik Rikki Simons - GIR / Kid #1 * Andy Berman - Dib * Melissa Fahn - Gaz * Lucille Bliss - Ms. Bitters * James Gleason - Scientist #1 / Clerk / Neighbor * David Herman - Microgoogles Ad * Jason Marsden - Zootch / Hall Monitor / Torque Smacky * Kevin Hamilton McDonald - Purple / Kid #2 * Philece Sampler - Scientist #4 / Germ Woman / Tiny Germ Voice * Mr. Scolex - Computer Voice / Tallest Computer Voice * Antoinette Spolar - Receptionist / Nurse / Spoo * Wally Wingert - Red / Scientist #2 * Donna Grillo Gonzales * Anna Henry * Arthur Montmorceny * Joseph Daniello * Miy