
Quick answer — Nagaru Tanigawa worked on The Disappearance of Haruhi Suzumiya (Original Creator), The Melancholy of Haruhi Suzumiya (Original Story), The Melancholy of Haruhi Suzumiya (2009) (Original Story) and 2 more anime.
Nagaru Tanigawa worked on The Disappearance of Haruhi Suzumiya (Original Creator), The Melancholy of Haruhi Suzumiya (Original Story), The Melancholy of Haruhi Suzumiya (2009) (Original Story), The Melancholy of Haruhi-chan Suzumiya (Original Creator), Nyoron! Churuya-san (Original Creator).