Foop is incredibly devious, manipulative and smart. He knows what he wants and stops for no one! He is very confident, and hates anyone who'd try to tear him down (he'd be the only one who gets to tear others down!). He likes to seek revenge, but only when truly necessary. He hates what his counterpart, Poof, has been up to, and really wants to destroy him, as well as all of Fairy World and the fairies. He is very loyal to Anti Timmy, Anti Cosmo, Anti Wanda, and Anti Sparky. He loves to play a lot, and even is incredibly friendly. He isn't too popular, only being friends with Poof (which he extremely regrets). He is very smart and capable, and is an "evil" genius like his father, Anti Cosmo. He once became a girl to stop Chloe, the resident goody-goody, from destroying Anti Fairy World with her extreme niceness. Chloe, however is still nice, so his plan got foiled then.