Tomohisa Hashizume is a Japanese voice actor and narrator affiliated with Aoni Production. He was born on April 13 in Hyogo Prefecture and is a graduate of the A&G Academy's fourth generation. His career began in 2008, with his debut role being a minor character in a drama CD for the game Persona 3. Beyond anime and game voice work, he is also extensively active as a narrator for various television programs.

Hashizume is widely recognized for his role as Bertholdt Hoover in the globally popular anime series Attack on Titan, a character he portrayed across multiple seasons, compilation films, and the spin-off series Attack on Titan: Junior High. This role is frequently cited as his most prominent and contributed significantly to his public profile. In the realm of video games, he is known for providing the voice of the character Fa Zheng in the Dynasty Warriors and Warriors Orochi series. His other notable anime and OVA roles include Delico in Gangsta., Deit in Senjō no Valkyria 3: Ta ga Tame no Jūsō, and various characters in long-running series such as One Piece and Dragon Ball. In video games, his portfolio also includes characters like Elliott Oates in Valkyria Chronicles 3, Kagan in Oninaki, and Oboro Maru in the HD-2D remake of Live A Live. He also appears in Fate/Zero 2nd season in the role of Mitternes.

While not typically associated with a single director or studio on a level that defines his career, Hashizume has worked on numerous projects with a wide range of fellow voice actors, including frequent collaborations with talents such as Kenji Hamada, Chika Sakamoto, and Kazue Ikura. His work spans adaptations across different franchises, demonstrating his versatility in both anime and video game productions. A recurring theme in his career is his contribution to the Koei Tecmo game library, notably through his role in the Warriors series.

Hashizume holds a standard driver's license and a Level 3 certification in MIDI, reflecting a strong personal interest in electronic musical instruments, desktop music production, and drumming. He is a native Kansai dialect speaker. While he did not achieve mainstream recognition through major public awards, his long-standing presence in the industry and his portrayal of key characters in internationally successful series like Attack on Titan stand as significant professional achievements, cementing his status as a familiar and respected voice in Japanese animation and gaming.