The Monster Kid is a shōnen manga and anime series by Fujiko Fujio named after its protagonist. The first series was broadcast on TBS from April 21, 1968, to March 23, 1969. The second series was broadcast on TV Asahi from September 2, 1980, to September 28, 1982. A live-action series was broadcast on Nippon Television and Yomiuri Television from April 17 to June 12, 2010. The 94-episode 1982 iteration was aired around the world, marketed as The Monster Kid, which was the official English title.

Obake no Q-Tarō is a Japanese manga series by Fujiko Fujio about the titular obake, Q-Taro, who lives with the Ōhara family. Q-Tarō, also known as "Q-chan" or "Oba-Q", is a mischief-maker who likes to fly around scaring people and stealing food, though he is deathly afraid of dogs.