Boola is a brutish two-headed giant with a thick yiddish accent from the classic Popeye cartoon Popeye the Sailor Meets Sinbad. He is a monster that was defeated and enslaved by Sinbad long ago and now lives on his island as his personal stooge and living trophy. Sinbad insults Boola frequently such as calling him a stooge or remarking how two heads are not better than one, and even claims that he captured them only for fun. Despite this mistreatment, the two-headed giant continues to obey Sinbad purely out of fear of his strength, however they will still try to attack him when his back is turned (with little success).
When Popeye landed on Sinbad's island seeking to reclaim Olive Oyl (who had been kidnapped by Sinbad), Sinbad sicked his vicious Roc on him, but Popeye easily turned it into a bird dinner. This greatly angered Sinbad which forced him to sic Boola on him, and while the giant had the upper hand at first, he was quickly outwitted by Popeye who caused Boola's heads to argue amongst themselves and fight each other, he then managed to stomp both their feet which caused them to throw Popeye against a tree in anger. The tree then proceeded to fall on one of their heads angering them again and making them rush towards Popeye, but the sailor easily went between Boola's legs and when the giant bent over to see, Popeye punched their heads into the ground, instantly knocking them out and causing them to fall over with a large rumble.
- According to Sinbad, Boola was so strong he even frightened King Kong.
- It is shown that if one of Boola's heads is hurt, the other head will show signs of the injury. Such as if one head gets hit on the head, the other will grow a bump as if it was the one that was hit.
- Boola's right head does not like the left head's special fried fricassee.