虫プロダクション
Rankin/Bass had previously produced a television show with the "Wind in the Willows" characters in 1970, "The Reluctant Dragon &amp; Mr. Toad Show", with the voices of Canadian actors Paul Soles, Donna Miller, Claude Rae and Carl Banas, the production artwork of Paul Coker, Jr., and the animation of Osamu Tezuka's Mushi Production in Tokyo, Japan.