Brian Beacock is an American actor who has built an extensive career providing English voices for anime series, video games, and animated films. Born Brian Keith Beacock on March 29, 1966, in Hayward, California, he has been active in the entertainment industry since 1988. Before focusing on voice acting, Beacock's performance background included completing the national tour of the musical Les Misérables. In addition to his on-screen and voice work, he is also a writer, producer, and musician. For some of his roles, particularly in earlier productions, he has been credited under the alias Donn A. Nordean.

Beacock is a prolific voice actor affiliated with several major dubbing studios, including Bang Zoom! Entertainment, Studiopolis, and SDI Media. He is known for his versatility, frequently voicing characters ranging from young protagonists to eccentric antagonists. One of his most iconic and enduring roles is Monokuma, the maniacal teddy bear antagonist in the popular Danganronpa video game franchise, a role he has reprised across multiple sequels including Danganronpa: Trigger Happy Havoc, Danganronpa 2: Goodbye Despair, and Danganronpa V3: Killing Harmony. His performance as Monokuma earned him a nomination for Performance in a Comedy, Supporting at the 2014 National Academy of Video Game Trade Reviewers (NAVGTR) awards.

In the realm of anime, Beacock has an extensive filmography with numerous prominent roles. He is particularly well-known within the Digimon franchise, having voiced the main character Takato Matsuki in Digimon Tamers, as well as Agumon in Digimon Data Squad and Bokomon in Digimon Frontier. He has also been a recurring presence in long-running series like Naruto and Bleach; in Naruto, he voiced characters such as Sakon, Ukon, and Yashamaru, and in Bleach, he is the voice of Yumichika Ayasegawa, a role he has continued into the series' final arc, Bleach: Thousand-Year Blood War.

Beacock's other significant anime credits are numerous and span a wide variety of popular titles. He voices Ryunosuke Akutagawa in Bungo Stray Dogs, Rivalz Cardemonde in Code Geass, and Renzo Shima in Blue Exorcist. He plays the recurring role of Walker Yumasaki in the Durarara!! series and its sequels. In the Sword Art Online franchise, he is the voice of Takeru Higa, a character who appears in the Alicization arc. He has also taken on roles in newer, high-profile dubs, such as Dom in BEASTARS, M in Vivy -Fluorite Eye's Song-, and Geryuganshoop in One-Punch Man. For Viz Media's re-dub of the Sailor Moon franchise, he voiced Seijuuro Ginga in Sailor Moon R and later played the role of Helios in the films Pretty Guardian Sailor Moon Eternal. He is also the English voice of Sneech, the character Suneo Honekawa, in the Stand By Me Doraemon films.

Beyond these, his filmography includes a wide array of roles that demonstrate his range. He voiced Navid in the CGI film Monster Hunter: Legends of the Guild. In the film Paprika, he provided the voice for Hajime Himuro. He also voiced characters in the Idaten Jump series, including Arthur, Kiyoshi, Jero, and Seiji, and took on roles in B-Legend! Battle Bedaman as Joshua and Yamato, and as Eros in The Laws of the Universe: Part 1. His work often involves recurring collaborations with other prominent voice actors in the Los Angeles-based dubbing community, such as Kirk Thornton, Kate Higgins, and Sam Riegel, appearing alongside them in numerous projects over the years.

In addition to his voice acting, Beacock has received recognition for his work as a musician and composer. He shared the 2005 Royal Television Society Award for Best Music – Original Title Music with Jamie Forsyth for their work on the UK television program Playing It Straight. He has also created and produced web series, including the zombie comedy Acting Dead, which won multiple awards, including a Primetime Emmy Award for its lead actress.