Sora was originally designed by Kingdom Hearts series director and character designer Tetsuya Nomura during a discussion between Disney and Square about who should be the protagonist of the series. Wanting an original character, Nomura made various sketches of Sora until the design met the approval of Disney. Nomura came to regard Sora as his favorite character that he had designed, and pushed for the character to have a leading role in the Kingdom Hearts story in spite of the characters youth. Throughout the series, Sora has been voiced by Academy Award nominee Haley Joel Osment in the English version and Miyu Irino in the Japanese version. As a child, Sora was voiced by Takuto Yoshinaga and Luke Manriquez in Japanese and English, respectively.