Sent to Earth by the Almighty Tallest
to conquer and destroy. He is "assisted" by his robot slave GIR
and is annoyed by the earth boy Dib
. Zim is unnecessarily loud all the time, but is extremely funny in his ever-failing attempts to destroy all human life.
Zim-"MY TALLEST! MY TALLEST! MY TALLEST!(repeated repeatedly)"
Almighty Tallest Red
-"I was curious to see when you would shut up on your own. But it's been THREE hours, Zim! THREE HOURS!!!"