Benshi (弁士?) were Japanese performers who provided live narration for silent films (both Japanese films and Western films). Benshi are sometimes called katsudō-benshi (活動弁士) or katsuben (活弁).
During silent films, the benshi stood to the side of the screen and introduced and related the story to the audience. In theatrical style, benshi often spoke for the characters on-screen and played multiple roles. Stemming from the traditions of kabuki and Noh theaters, the benshi's narration and general commentary were an important part of the Japanese silent film experience. The benshi also provided translation for foreign (mostly American) movies.
Much like in the West, Japanese silent films were often accompanied by live music (in addition to the benshi). However, unlike Western films, which tended to have a theatre organ as accompaniment, Japanese films had a score which supported the traditional Japanese instruments of a kabuki play. Since benshi performed without external amplification, they had to carefully coordinate with the orchestra to be heard. At that time, theaters typically seated 1000, so a trademark of successful benshi was the ability to project their voices into large spaces.
Famous benshi active in the silent era include Musei Tokugawa (at the Aoikan and Musashinokan theaters), Saburō Somei (at the Denkikan), Rakuten Nishimura, Raiyū Ikoma (at the Teikokukan), Mitsugu Ōkura, and Shirō Ōtsuji.