Shigeru Mogi is a Japanese voice actor born on August 19, 1973, in Kanagawa Prefecture, Japan. He pursued voice acting training at the Katsuta Voice Actor Academy, from which he graduated as a member of the 14th graduating class. Following his training, he began his professional career affiliated with the talent agency 81 Produce before later transitioning to One Production, his agency in later years.

Mogi's debut in a leading role came in 2002 when he was cast as the protagonist Seina Yamada in the anime series Tenchi Muyo! GXP. This character, a hapless young man drafted into the Galaxy Police, became one of his most prominent and defining performances. He would reprise this role years later in the 2017 OVA continuation, Tenchi Muyo! Ryo Ohki, marking a return to the franchise. His association with the Tenchi Muyo! universe is a significant thread in his career.

Throughout the 2000s, Mogi built a career with a variety of supporting roles in television anime. In 2004, he was particularly active, voicing characters such as Ishizuka in Gokusen, Yabe in the sports anime Major, and Mitsuru Koidemizu in the post-apocalyptic series Desert Punk (also known as Sunabozu). The same year, he also took on minor roles in acclaimed series like Paranoia Agent. His other anime credits from this period include appearances in Ai Yori Aoshi Enishi, Duel Masters Charge, and Mirmo!.

Beyond anime, Mogi's voice acting work extended to video games and dubbing. He contributed to the Japanese versions of games such as Princess Maker and Atelier Judie: The Alchemist of Gramnad. In the field of dubbing, he voiced characters for foreign films like the Hong Kong action-comedy Fight Back to School. He was also active in children's programming, providing the voice for Toodles, the helpful robot, in the Japanese dub of Disney's Mickey Mouse Clubhouse, and for the character Samy in the animated series Jimmy Two-Shoes. His performances often centered on youthful, energetic, or comedic characters.