FANDOM


Invader Blue and Gray

Invader Blue with her S.I.R. unit Gray

Invader Blue looks like Zim but she was born first, while Zim was born after Blue turned one year old. Blue, along with her SIR Unit Gray, are planing to destroy the moon, but Blue has Earth school. With her human disguise, Blue acts like a normal human. 
Community content is available under CC-BY-SA unless otherwise noted.