Hiromasa Yonebayashi is a Japanese animator and film director, known for his work with the renowned animation studio Studio Ghibli. He was born on September 24, 1980, in Toyama, Japan. Yonebayashi began his career at Studio Ghibli, where he contributed to several acclaimed films, including Spirited Away and Howl's Moving Castle. In 2011, he made his directorial debut with the film Arrietty, which is based on the novel "The Borrowers" by Mary Norton. Yonebayashi continued to direct films, including When Marnie Was There, further establishing his reputation in the animation industry.