Tarō Suwa is a Japanese actor whose career spans both live-action film and voice acting. Born on August 9, 1954, in the Nerima ward of Tokyo, Japan, he has maintained an active presence in the entertainment industry from the late 1970s through the present day.

Suwa initially pursued higher education at the Kanto Gakuin University, studying in the Department of Sociology within the Faculty of Letters, though he ultimately left the university before completing his degree. His career in acting began in 1976 when he joined the theater group New Engekijin Club Marui as a trainee. He made his formal stage debut the following year in a production of Oedipus Rex. His film debut came in 1982 with the coming-of-age film September's Joke Club Band directed by Nagasaki Shunichi.

Throughout his career, Suwa has primarily worked as a character actor, frequently playing supporting roles such as police officers, businessmen, gangsters, and other everyday figures. He has established notable recurring collaborations with directors Kiyoshi Kurosawa and Sion Sono, appearing in several of their films. He is also recognized for his frequent appearances in long-running Japanese television franchises including Kamen Rider, Super Sentai, and Ultraman.

In the realm of voice acting, Suwa has taken on animated and dubbed roles in addition to his on-screen work. His voice roles include the character Shibumi, also known as Mizuno Goro, in the anime series Digimon Tamers. The roles you listed represent a selection of his broader filmography, which spans over one hundred film and television productions. His role in the Ring 2 is credited as Inspector Kadokura. In Shin Godzilla, he appears as the Deputy Governor of Tokyo. He appears as the Zero Section Boss in Zero Woman 2005. Other confirmed roles from your list include the Ôshima Police Officer in Sadako and Inspector in Ring 2, which align with the types of law enforcement characters he frequently portrays.

Beyond performing, Suwa has also worked as a teacher, serving as an acting instructor to pass on his experience to a younger generation of performers. His contributions to the entertainment industry have been recognized not with major individual acting awards, but with a collaborative honor: a commercial he appeared in received the Encouragement Prize in the CM category at the 55th Galaxy Awards.