List of Invader Zim episodes

Invader Zim is an American animated television series that was produced by and aired on Nickelodeon. The series revolves around an extraterrestrial named Zim from the planet Irk and his ongoing mission to conquer and/or destroy a dark and satirical version of the Earth. His various attempts to subjugate and destroy the human race are invariably undermined by some combination of his own ineptitude, his malfunctioning robot servant GIR and his nemesis Dib, one of very few humans not oblivious enough to be unaware of Zim's identity.

Invader Zim was first broadcast on March 30, 2001. The show was targeted at children in their early teens, and met with critical acclaim. However, after the first season the show's ratings began to suffer. Before the second season was completed, Nickelodeon cancelled the series, leaving at least sixteen episodes and a planned television movie series finale unfinished. Because of its continued fanbase and above-average DVD sales since cancellation, Invader Zim has been called a cult hit.

The series consists of a pilot episode, 46 episode segments, and at least 17 episodes that were in production at the time of the series' cancellation. As of August 19, 2006, all 46 episodes have aired on television and been released on DVD. On December 24, 2011, the pilot episode finally aired on television. 38 episode segments were originally broadcast in pairs, each 12-minute episode segment debuting in the same half-hour. There are eight double-length episodes. This list is ordered by the episode order in the DVD releases, with broadcast dates noted. Almost every episode was directed by Steve Ressel; the only exception is the pilot, which was directed by Jordan Reichek.

Billy West was the voice of Zim for this episode only. This episode was also created as an animation test.Richard Horvitz was chosen for the series role after the pilot was shown to Nickelodeon because West's voice was too recognizable from Futurama, according to Invader Zim creator Jhonen Vasquez's DVD commentary.

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