Perospero is extremely sadistic, taking great joy in tormenting others, such as when he threatened Caesar Clown with the prospect of being turned into candy and licked to death while also squeezing his heart for fun, as well as when he mocked a sobbing Vinsmoke Judge once the latter realized Big Mom's treachery. Perospero is not without fear, as he became terrified when his own mother threatened to kill him if she discovered that he was lying about the Straw Hats stealing a spare cake.