Tomokazu Sugita (杉田 智和, Sugita Tomokazu; born October 11, 1980) is a Japanese voice actor and author. He mainly plays young men and is characterized by his "deep bass voice," and he often performs ad-libs and imitations. He is best known for his roles as Gintoki Sakata in Gintama and Joseph Joestar in JoJo's Bizarre Adventure. (Via Wikipedia)