Old Kai Character Facts

Old Kai's personality and demeanor are very perverted and self-centered, but with the capability to make a sacrifice at the right time if the need arises, very similar to Master Roshi. He has a very perverted mind and loves Dirty Magazines; as a matter of fact, one of Goku's first bribes to him was loaning him some of Master Roshi's "Girlie Magazines", much to Gohan and Supreme Kai's chagrin
Long before the events of the series, Old Kai was once a youthful and handsome looking being (though still knows about the abilities of the Potara Earrings because of his horrified expression when one of his was taken), until one day, an old witch snuck up on him while he was reading a comic book and took one of the Potara Earrings that he was wearing. She put the earring on her ear which caused the two to fuse. This caused him to become an old wrinkly being with a personality befitting of the new form, as well as new magical powers. Some time after this fusion, Old Kai was sealed by an enemy, which according to him was very powerful, but not as powerful as Majin Buu. He was sealed inside the Z Sword due to the enemy fearing his ability to raise a person's power gained from fusing with the witch.