|Residence||Sea of Teeth|
|Species||Cephelapod monster, possibly a kraken or giant octopus.|
|First Appearance||Several Leagues Under the Sea|
Eight-Armed Willy is the most vicious creature in the sea. He enjoys devouring whales and adventurers alike, but his favorite treat is candy, and because of this he is Flapjack's rival in the search for Candied Island. He wears a patch over his right eye (which is later revealed to be due to blindness in that eye) and a galleon upon his head. According to a picture in the Candy Barrel, he only needs four arms to sink a galleon. However, he once lost an arm wrestling contest to Flapjack. It is later revealed that he loves to sing. He is a reoccuring villain, often associated with other monsters in the episodes.