Donn A. Nordean is a pseudonym for Brian Keith Beacock, an American voice actor known for his extensive work in English-language dubs of Japanese anime series. He has been active in the industry since 1988.

Under the name Donn A. Nordean, Beacock has voiced several notable anime characters. He plays Dengaku Man in the comedy series Bobobo-bo Bo-bobo. In the Nura: Rise of the Yokai Clan franchise, he provides the voice for Jiro Shima, a human classmate of the protagonist Rikuo Nura and a member of the Kiyojuji Paranormal Investigation Squad, across multiple series and episodes. He also voices the character Satori in the same series. Additionally, his work under this alias includes the role of Ninom and Blue Fox in Mix Master: Final Force.

In the broader context of his career as Brian Beacock, his major voice roles are extensive. He is best known for portraying Takato Matsuki in Digimon Tamers, Yumichika Ayasegawa in Bleach, Renzo Shima in Blue Exorcist, and Monokuma from the Danganronpa franchise. Other prominent roles include Ryunosuke Akutagawa in Bungo Stray Dogs, Walker Yumasaki in Durarara!!, and Krillin in the Bang Zoom! Entertainment dub of Dragon Ball Super. His video game work as Brian Beacock includes Monokuma in multiple Danganronpa titles and Lloyd Irving in several Tales series games.

Beacock has recurring collaborations with several anime dubbing studios, including Bang Zoom! Entertainment, Studiopolis, and SDI Media. He has frequently worked alongside voice actors such as Todd Haberkorn and Darrel Guilbeau on projects like Nura: Rise of the Yokai Clan. As a notable achievement outside voice acting, Beacock shared a Royal Television Society Award for Best Music - Original Title Music in 2005 for his work on the television series Playing It Straight.