The main protagonist of Invader Zim, and my fanfic, Renegade Zim.

(Invader Zim series)

- Due to being defective, he was looked down and prejudiced against due to his ability to be defy the Tallests' orders and thus, a massive threat as well as a possibility of going rogue.

- He doesn't need to sleep, but prefers to sleep if he feels that overwhelm or need to repair himself, by having his PAK doing the repairments.

- The reason he desperately tries to prove himself to his Tallests is because of his status as a defective, leading a lot of prejudice.

- Because his PAK is not quite like the others, he needs foods unlike normal irkens who can survive years without foods. So, he normally eats vegetarian foods not because he cares for the animals, but because meat burns his insides, so it's medical reasons.

- Irkens has a massive sweet tooth, where Zim is no exception, so naturally he loves sweetie stuff and enjoys coffee with ton of sugars.

- While polluted water hurts his skin, he can drink liquids just fine as long as it's not polluted.

- After Halloween, he starts hating the holiday and when that happens, he would shut down his entire home and hide inside his lab until the next day.

- Due to his lack of interest in humans, this translate to not giving a damn about others' cultures and thus, he sometimes come off as ignorant (Which he is).

- Unlike other irkens, he is fully capable of falling in love, guilt, sadness and more, but he refuses to show them out of fear of being weak and losing his fellow irkens' respect (Which is nonexistent)

- Due to the prejudice, he become so delusional to believe every irkens respect him and wanted to be him as a coping mechanism and to avoid the reality of the situation.

- He strongly prefer colder weathers over hot weathers as the heat can possibly malfunction his PAK, so the colder weathers, while does cause his skin to freeze, doesn't malfunction his PAK, so he was able to adapt better.

(Renegade Zim)

- By Earth standards, his birthday would have been December 12th.

- His voice actor, at first, would be Richard Steven Horvitz, however for spoiler reasons, his voice actor would be Johnny Yong Bosch, the voice actor for Nero (DMC5), Zero (Megaman X) and Tohru Adachi (Persona 4).

- Thanks to his adopted family who took him around the world for missions, he slowly warms up to humans and even manages to pick up a few languages such as German, Mandarin, Japanese and Russian, but would never admit it, though. The reason he was able to learn it is because, to him, it's somewhat similar to the Irken language, so that's why. Even to this day, he still finds English the hardest to translate into due to how drastically different it is to his origin language.

- He secretly enjoys being in Russia and Germany, as he prefers the cold over hotter countries, so he hates going to countries like Colombia, Brazil, India and Iran due their hot climate.

- His favourite colour are red and magenta.

- He is completely shit at video games due to losing his temper very easily, and not very good at figuring out the controls, though he is excellent at shoot them up games.

- Despite being terrible at games, he loves bloody and ultra violent games such as the Doom franchise, and since it's a shoot them up game, well... he loves brutally murdering his enemies.

- After finding out the truth of his mission and now, being morality checked by Mikala. Deep down, he does feel guilty for the things he done, especially towards Skoodge and Keef, who he manipulated and feels he's no better than his former Tallests.

- Due to his fiery temper, he has to be in check constantly, especially since he has Shadow Dragon's powers.

- Because his arms are made out of the Shadow dragon, this technically made him half dragon/half irken, but his DNA is still fully irken though.

A/N - And that's all I got. I hope you guys enjoyed my trivia of him. There might be more, but I rather avoid spoilers, so here it is. Leave a comment and have a good day, Aqua out!