This paper toy is a chibi Kishibe Rohan, a character introduced in Part IV: Diamond is Unbreakable (the fourth story arc of the Japanese manga / anime / video game series JoJo's Bizarre Adventure), the papercraft was created by smilerobinson.
Being a successful mangaka by profession, it is likely that he's a self-insert of Hirohiko Araki. The name Rohan Kishibe also appears to be an anagram of the author Araki Hirohiko. Rohan's name shares enough letters to spell "ARKI HIHO", and duplicating the missing letters in "O,R,A,I,K" would complete "Araki Hirohiko." [Source: wikia]
You can download the paper craft toy here: JoJo's Bizarre Adventure - Chibi Kishibe Rohan Free Paper Toy Download