Takatsugu Awazu is a Japanese voice actor born on April 18 in Hyogo Prefecture, Japan. He is affiliated with the talent agency Atomic Monkey and is a graduate of its fourth-term Voice Actor and Acting Institute. His blood type is O, and his hobbies and skills include watching movies, juggling, and speaking the Kansai dialect. At one point in his career, he used the stage name Koizumi Ichirouta.

Awazu began his voice acting career in 1998, with his first credited role being a staff member in the television anime Kndatchi's Case Files. Over his career, he has been affiliated with several agencies, including Gekidan 21st Century Fox and Production Baobab, before joining Atomic Monkey. He was active in the industry from the 1990s until his retirement on August 31, 2023.

Throughout his career, Awazu was primarily known for supporting roles and voice work in numerous anime series. He had a recurring role as the second voice of Kagami Misumi in Naruto: Shippuden. He also appeared in long-running and popular series such as Bleach, where he voiced Shigeo and Bohaha, and Gintama, where he played various characters including a member of the Renho. In 2015, he was credited as Nitaris Ototo in Durarara!!×2 Shō, a role he later reprised in Durarara!!×2 Ketsu. Other notable supporting roles include appearances in C3 - CubexCursedxCurious, Aldnoah.Zero, Your Lie in April, and The Pilot‘s Love Song.

In the realm of film, Awazu played the role of Sugoroku in the 2022 original anime feature Eien no 831 (The Eternal 831), directed by Kenji Kamiyama. Sugoroku is described as a veteran newspaper deliverer who teaches the protagonist, Suzushirō Asano, the trade. He also had a role in the 2019 animated film Saga of Tanya the Evil.

Beyond television and film, Awazu contributed his voice to several video games and original video animations (OVAs). He voiced Manboi in the game OZMAFIA!! and its expanded version, OZMAFIA!! -vivace-. He also played roles in games like Fairy Fencer F and the mobile game Honkai Impact 3rd. He was part of the cast for the OVA series Nurse Witch Komugi.

Information on major awards or recurring collaborations with specific directors or fellow cast members is not readily available. His career was defined by consistent work, providing voices for a wide array of characters across many popular anime franchises.