Zim is a buffoonish alien invader from Planet Irk who comes to earth to dominate it in the name of his home planet. he has a stupid,yet hilarious robotic minion/sidekick called Gir. Both disguise themselves as an earthboy and his dog to study the earthlings upclose.
Zim has a Nemesis called Dib.Dib is a hardcore believer of unsolved mysteries and paranormal propaganda. His greatest goal is to get proof that Zim is an Alien..but always fails and often gets mocked by his peers for his beliefs....especially by his younger sister,Gaz. Gaz is someone that you Never wanna screw with...trust me.
Other characters include: The Tallest,Supreme rulers of Planet Irk,who treat Zim as a joke; And Dr. Memebrane,Gaz and Dib's scientist father,who oftentimes questions his Son's beliefs.
This show is funny. Dib and Zib's buffoonish antics and Gir's often hilarious acts of idiocy make this show the funniest Nicktoon Ever! Even funnier than Ren and Stimpy. Despite being a funny show,Invader Zim does have it's Gross moments.
The artwork and animation are mediocre though,as is the music.
Though,the writing and voice acting are both top notch. Invader Zim is one cartoon show that's worth checking out.
Well that's all I have to say about this show. See ya next time on....Cartoon Quickie.