Brianne Siddall is an American voice actress with a extensive career spanning several decades, primarily known for her work in anime dubbing and animation. Born on August 25, 1963, in Encino, California, she has contributed her voice to hundreds of episodes of popular series and numerous films, often portraying young male characters or creatures with high-pitched voices. Throughout her career, she has worked under various pseudonyms, including Ian Hawk, Brianne Brozey, Jetta E. Bumpy, and Murray Blue.

Siddall's career in voice acting began in the mid-1980s, and she became a prominent figure in the industry during the anime boom in the United States in the late 1990s and 2000s. She is perhaps best known for her extensive work within the Digimon franchise. Her roles include Koromon in Digimon Adventure, Calumon in Digimon Tamers, Tommy Himi in Digimon Frontier, and Keenan Crier in Digimon Data Squad. Her portrayal of these characters, from tiny digital creatures to young human heroes, made her a recurring and recognizable presence for fans of the long-running series. She also voiced the role of Jim Hawking, the young genius crew member, in the acclaimed series Outlaw Star, credited as Ian Hawk.

Another defining role in Siddall's career came with the.hack franchise, where she voiced the complex character of Tsukasa in the anime.hack//Sign and the character Elk in both the anime and the associated.hack video games. This performance showcased her ability to handle more nuanced and dramatic material. Her voice work also extended to major film productions, such as providing the voice of Kenichi in the film Metropolis and Shinji Nakaoka in the historically significant war drama Barefoot Gen. Siddall frequently collaborated with specific dubbing studios, including Bang Zoom! Entertainment and Pioneer, contributing to many of their high-profile releases. These include her role as Kunikida in The Melancholy of Haruhi Suzumiya and its sequel film The Disappearance of Haruhi Suzumiya, as well as Ruby and Rina in Saint Tail. Her filmography also features roles in Gurren Lagann (as Gimmy), Blue Exorcist, and Zatch Bell!.

Beyond anime, Siddall's voice can be heard in various animated series and live-action projects. She voiced the Artful Dodger in Saban's Adventures of Oliver Twist and provided the voice of a 1950s-era Robin in an episode of The New Batman Adventures. In the realm of live-action television, she contributed voice work to the Power Rangers franchise, voicing Impus in Power Rangers Lightspeed Rescue and Circuit in Power Rangers Time Force. Siddall's work also extended to video games, with notable roles including Jr. in the Xenosaga series, Mithos Yggdrasill in Tales of Symphonia, and Chihiro in Bushido Blade 2.

In March 2011, Siddall's career and life were significantly impacted by an accident on the set of the television series NCIS: Los Angeles, where she was working as an assistant location manager. A heavy piece of equipment fell on her, causing severe injuries to her neck and back. The subsequent surgeries, including a five-hour procedure to fuse cervical discs, were complicated by their proximity to her vocal cords, and the pain from the injuries made it difficult for her to speak. This accident profoundly affected her ability to continue her voice acting work. Despite these challenges, her extensive body of work from the 1980s through the 2010s has left a lasting mark on the landscape of English-dubbed anime, making her a notable figure for fans of the genre.