Toho Co., Ltd. is a Japanese entertainment company primarily engaged in the production and distribution of films and the production and exhibition of stage plays. It has its headquarters in Chiyoda, Tokyo, and is one of the core companies of the Osaka-based Hankyu Hanshin Toho Group. Toho is best known for producing and distributing many of Ishirō Honda and Eiji Tsuburaya's kaiju and tokusatsu films as well as the films of Akira Kurosawa and the anime films of Studio Ghibli, CoMix Wave Films, TMS Entertainment, and OLM, Inc. The company has released the majority of the highest-grossing Japanese films, and through its subsidiaries, the company is the largest film importer in Japan.

King Ghidorah is a fictional monster, or kaiju, which first appeared in Ishirō Honda's 1964 film Ghidorah, the Three-Headed Monster. The monster was initially created by Tomoyuki Tanaka, Eiji Tsuburaya and Shinichi Sekizawa as an homage to the eight-headed mythological Japanese dragon Yamata no Orochi. Although the name of the character is officially trademarked by Toho as "King Ghidorah", the character was originally referred to as Ghidorah, Ghidrah or Monster Zero in some English markets.