After graduating from Toho Gakuen College of Drama and Music, Terasoma joined Haiyuza Theatre Company.
[1] After that, he became a regular in films directed by Shinichiro Sawai, who took the megaphone for W's Tragedy, and Hiromichi Horikawa, whom he has known since high school, and is still active as a supporting actor in various dramas.
His debut as the voice of Shadow Moon in 1987's Kamen Rider Black drew attention, but after that he did not have many voice acting roles except in tokusatsu dramas produced by Toei.
It was not until 1999, when he left Haiyuza, that he began to do voice acting in earnest.
After working for Haiyuza Theatre Company and Office PSC, Terasoma has been affiliated with Mausu Promotion since 2003.