Meet Dib. He tends to be called crazy by both his peers and his family, but Zim is the one person that lets him know otherwise. He’s a paranormal fanatic who will spend his nights spying on Zim and watching Mysterious Mysteries.
You might find him researching up on Irkens as well, after all, he has to learn their weaknesses to catch them!
He is a teen, and his traits are Insane and Geek.
His aspiration is Nerd Brain.
Dib Membrane[2] (voiced by Andy Berman)[3] is a young eccentric paranormal investigator who spends his time studying the supernatural and paranormal. He tends to thwart Zim in his schemes to take over the world. Dib is generally hated by his classmates because they see him as annoying and crazy. His classmates also tend to bully him a lot, but Dib is reluctantly determined to save them anyway. Zim and Dib often fight because one is trying to destroy the planet and the other is trying to save it. While they are often portrayed as enemies, they have at least once been forced to work as reluctant teammates. They normally both hate each other with a passion and would like nothing better than to destroy each other. Despite the both of them hating each other, an unfinished episode of the series revealed that when Dib lost interest in the Zim and the paranormal, Zim gave up on destroying the earth and only got back up when Dib decided to hunt Zim. Dib is sensitive over the size of his head and usually overreacts when people point out its largeness. It is revealed in some episodes that his head serves multiple purposes; in the episode “Gaz, Taster Of Pork”, it served as a portal into other worlds.
When dealing with people like the police, the F.B.I., NASA Place or the secret society that he belongs to called The Swollen Eyeballs, they all find Dib annoying and get mad whenever he calls or swings-bye. A precious few of these people realize just how sane Dib is and are kind enough to help him. The Swollen Eyeballs are a secret society dedicated to discovering the paranormal and separating the fake superstitions from the real ones. They all have secret code names and some of them are Dib’s heroes. Dib’s secret codename is Agent Mothman. Late in the series, Dib is actually seen arguing with some of these people and gets irritated when many of them decide not to help him or remind him of a situation of where he got no help when he really needed it. In the episode “Zim Eats Waffles”, where Dib is seen spying on Zim by using a hidden video camera in his kitchen he talks to another member of The Swollen Eyeballs and the F.B.I. When he is asked if he ever got that ghost ninja out of his toilet he replies angrily “Yes! No thanks to you!”. Because he is cried wolf so many times, Dib finds it very hard for people to believe him and is thrilled on the rare occasion when he finds someone who does. Nonetheless, he is willing and prepared to strongly defend the paranormal field of study whenever someone makes fun of it or says it is not a real field of study.