>>109702916Zim is partially deaf.
Dib's cowlick is actually a vestigal antennae.
Gaz has bad eyesight but refuses to wear glasses.
Membrane regularly swaps bodyparts (or at least his arms) with his Flesh Printer.
Tak has an acquired immunity to toxic food from Dirt and can eat most Earth foodstuff without trouble.
Red and Purple were a tactical officer and heavy weapons specialist respectively, although neither have seen combat since becoming Tallest.
Sizz-Lorr is an ex-Irken Elite, assigned to Foodcourtia after intimidating Tallest Spork with his largeness.
Miyuki believes anime is an accurate representation of Earth culture.
Nobody remembers Spork.