Yoshinori Sonobe is a Japanese voice actor born on July 7, 1977, in Tokyo, Japan. He is affiliated with the talent agency Production Baobab. His career spans a wide range of anime television series and original video animations (OVAs), beginning in the early 2000s.

Sonobe has built a career largely by voicing a variety of supporting and guest characters. Among his most recognized roles is the Pokémon Contest judge Mr. Sukizo in the Pokémon anime series, particularly during the Advanced Generation and Diamond & Pearl series. In the 2007 fantasy series Shining Tears X Wind, he provided the voice for the character Razalus. Another notable role includes Donny in the 2007 cult classic Baccano!. His film work includes a voice role in the acclaimed 2003 movie Tokyo Godfathers.

His filmography demonstrates extensive work across many popular franchises. He has appeared in long-running series such as the role of a police detective in Case Closed (known as Meitantei Conan). In the fantasy genre, he has voiced characters in shows like The Twelve Kingdoms, Shakugan no Shana, and D.Gray-man. His roles also span mecha and action series, including Buso Renkin, Mobile Suit Gundam AGE, and Fullmetal Alchemist: Brotherhood.

Through his numerous supporting roles, Sonobe has frequently worked alongside a number of prominent voice actors. Data indicates repeated collaborations with voice actresses such as Nogami Sachiko, Takagaki Ayahi, and Noto Mamiko. His career has been consistent, with credited roles from 2001 through at least 2016.