Masakazu Sakimoto is a Japanese voice actor and narrator affiliated with the talent agency TALENTUM. He is from Hiroshima Prefecture and his birthday is February 14th. Before pursuing voice acting full-time in Tokyo, Sakimoto worked as a sales representative for machinery tools in his native Hiroshima while simultaneously building experience as a narrator.

Sakimoto's career is characterized by extensive work across multiple facets of voice performance, including video game voice acting, anime, dubbing for foreign films and television series, narration for documentaries, and voice-over for various programs. His voice can be heard in a wide array of Japanese-dubbed versions of international productions. Notable dubbing credits include roles in films such as Kong: Skull Island and The Brutalist, as well as television series like The Last of Us, Bones, and the Korean drama Romance Town. He also contributes regularly to documentary programs, providing narration for NHK's BS World Documentaries on topics such as AI technology and Afghan markets, and voice-over for series like Mayday: Air Disaster and Nazi Megastructures.

In the realm of animation, he voiced the character Uchimura in the fourth season of the anime series Major. He also took on the role of a villain, credited as Akutou, in the web anime Seiyū Deka.

Sakimoto has an extensive portfolio in video games, often lending his voice to characters in otome games and major RPG titles. His game roles include Dalton and Craig in Eiyuden Chronicle: Hundred Heroes, Zwei in the Hiiro no Kakera series, Enishi in Bad Apple Wars, and Father Velmon in Bara ni Kakusareshi Verite. He has also contributed to major international game franchises in their Japanese localizations, such as Assassin's Creed Origins, Assassin's Creed Valhalla, Battlefield 1, and Fallout 4.

Throughout his career, Sakimoto has been associated with several talent agencies. He was previously affiliated with Office CHK and Wing Wave before joining his current agency, TALENTUM, in September 2024.