Naoya Takayama was a writer for many of the adapted scripts of Supernatural: The Animation. Outside of the Supernatural franchise he has also worked on other horror-based projects like the film Siren (2006).
Supernatural Wiki
Naoya Takayama was a writer for many of the adapted scripts of Supernatural: The Animation. Outside of the Supernatural franchise he has also worked on other horror-based projects like the film Siren (2006).