He looks up to actor Hiroki Narimiya as a role model.
He is good friends with actor Shun Oguri.
His hobbies include cooking, listening to music, watching movies, collecting tennis shoes, and writing on his blog.
On June 18, 2010, while he was riding his moped in Tokyo's Setagaya ward, Shunsuke collided with an automobile. The resulting accident caused a compound fracture in his femur.
He was cast in the television drama Keishicho Keizoku Sosahan ("Cold Cases"), but had to withdraw because of the moped accident.