Directed by Steve Ressel Written by Rob Hummel Jhonen Vasquez Cast Richard Steven Horvitz ... ZIM / SIR Walla (voice) Rikki Simons ... GIR / Old Man (voice) (as Rosearik Rikki Simons) Andy Berman ... Dib Membrane / SIR Walla (voice) Melissa Fahn ... Gaz Membrane (voice) Lucille Bliss ... Ms. Bitters (voice) Wally Wingert ... Almighty Tallest Red / Megadoomer Computer (voice) Kevin McDonald ... Almighty Tallest Purple (voice) (as Kevin Hamilton McDonald) Mo Collins ... Zita (voice) Danny Cooksey ... Melvin / Random Kid (voice) David Herman ... Assistant #1 / Assistant #2 (voice) Kerri Kenney ... Invader Tenn / Spuddy (voice) Kevin Michael Richardson ... Smikka Smikka Smoogoo / Buck (voice) Antoinette Spolar ... Gretchen (voice) Mindy Sterling ... Countess von Verminstrasser (voice) Fred Tatasciore ... Neighbor / Communications Officer (voice) Jhonen Vasquez ... Chuck / Cyborg (voice) (as Mr. Scolex) Produced by Monique Beatty Mary Harrington Steve Ressel Jhonen Vasquez Original Music by Kevin Manthei

Additional Info Premiere: April 26, 2002 DVD Release: November 21, 2006 Country: Distributor: Anime Works Websites: Production Companies Nicktoons Productions Distributors Nickelodeon Network   (2001-) (World-wide) (all media) Media Blasters   (2004) (USA) (DVD) Anime Works   (2004) (USA) (DVD) CBS All Access   (2020) (USA) (video) (VOD) Nickelodeon   (USA) (TV) Rating Stats Overall Rating -- / 10 Our Rating 6.4 / 10 Your Friends -- / 10 Male Users 6.4 / 10 Female Users -- / 10 Site Ranking #3,448 / 20,684 Ratings Breakdown Perfect 2 total ratings Site Ranking