Usagi Yojimbo (兎用心棒 ,Usagi Yōjimbō?, lit. "rabbit bodyguard") is a comic book series created by Stan Sakai in 1984. The main character's name, Miyamoto Usagi, is a play on "Miyamoto Musashi," Japan's most famous historical samurai and the author of The Book of Five Rings, and "Usagi" the Japanese language word for "rabbit" Set primarily at the beginning of Edo period Japan (early 17th century), with anthropomorphic animals taking the place of human characters, Usagi wanders the land on a musha shugyo (warrior's pilgrimage) occasionally selling his services as a bodyguard. Usagi Yojimbo is heavily influenced by Japanese cinema and has included references to the work of Akira Kurosawa (the title of the series is derived from Kurosawa's 1960 film Yojimbo) and to icons of popular Japanese cinema such as Lone Wolf and Cub, Zatoichi, and Godzilla.

Bartholomew "Bart" JoJo Simpson is a fictional main character in the animated television series The Simpsons and part of the eponymous family. Bart was created and designed by cartoonist Matt Groening while he was waiting in the lobby of James L. Brooks' office. Groening had been called to pitch a series of shorts based on Life in Hell but instead decided to create a new set of characters. While the rest of the characters were named after Groening's family members, Bart's name was an anagram of the word brat. After appearing on The Tracey Ullman Show for three years, the Simpson family received their own series on Fox, which debuted December 17, 1989.