This paper toy is the Astro Boy, based on the same named anime series, the papercraft is created by Toy a Day. There is Astro Girl papercraft in same style at the site: Astro Boy – Uran (Astro Girl) Free Paper Toy, and there is another Astro Boy papercraft here: Astro Boy Free Papercraft.
Astro Boy (Atom) is a fictional character, and the main protagonist of the Astro Boy franchise. Created by Osamu Tezuka, the character was introduced in the 1951 Captain Atom manga. Astro Boy has appeared in animated television shows and feature film adaptations of its eponymous manga, as well as a live-action TV series, other works by Tezuka, and video games.
Astro Boy (Astro) originally appeared as a supporting character in the comic Atom Taishi (Ambassador Atom or Captain Atom), which appeared in Shonen, a monthly magazine for boys, in April 1951. Tezuka then created a comic series in which Astro Boy was the main character.
Osamu Tezuka created Astro Boy to be, in the words of Frederik L. Schodt, a "21st-century reverse-Pinnochio, a nearly perfect robot who strove to become more human and emotive and to serve as an interface between man and machine." As Tezuka's art style advanced, Astro Boy "became more modern and 'cute'" to appeal to the audience of boys in elementary school.