Invader ZIM - Doom Doom Doom (Vol. 1) [DVD]Amazon. com Comic book artist Jhonen Vasquez's outr sci fi spoof, which ran on Nicktoons at Night from March 2001 to December 2002, remains the object of a vociferous cult following. Pressure from the fans compelled Nickelodeon to resume production of Invader Zim twice before the show was cancelled permanently. The title character is a zealous, none too bright agent from the Irken Empire posing a human boy. Zim imagines he's gathering vital