Junichi Suwabe is a Japanese voice actor, narrator, and radio personality from Tokyo, born on March 29, 1972. He is affiliated with the talent agency Tokyo Actor's Consumer's Cooperative Society (Haikyō). From a young age, Suwabe was involved in media and the arts, working as a school broadcaster during his elementary and junior high years and participating in film clubs during high school and college, where he originally aspired to become a movie director. After graduating from university, where he majored in sociology and minored in Chinese, he tried various jobs before enrolling in the training school for Haikyō. He made his debut as a voice actor in 1995, initially focusing on narration work for television programs and commercials, as well as radio hosting, throughout his twenties.

Suwabe possesses a magnetic baritone voice that has allowed him to portray a wide array of characters, from cool-headed and mature individuals to wild, passionate, and even comedic roles, making him a versatile and sought-after talent in the industry. His career-defining breakthrough came with the role of Keigo Atobe in The Prince of Tennis, a character that achieved immense popularity and for whom Suwabe's character songs achieved high rankings on the Oricon music charts. This role significantly increased his anime voice work and established him as a leading voice actor. He is also known for his extensive work as a narrator and event host, skills for which he has been formally recognized.

Over a prolific career spanning decades, Suwabe has accumulated a vast filmography of major roles. Some of his most iconic and enduring performances include Archer in the Fate/stay night series, Grimmjow Jaegerjaquez in Bleach, Undertaker in Black Butler, the legendary swordsman Ryomen Sukuna in Jujutsu Kaisen, and Shota Aizawa in My Hero Academia. He is equally renowned for his roles in sports anime, such as Daiki Aomine in Kuroko's Basketball, Victor Nikiforov in Yuri!!! on ICE, and Shoei Barou in Blue Lock. Other significant roles include Freed Justine in Fairy Tail, Yami Sukehiro in Black Clover, Leone Abbacchio in JoJo's Bizarre Adventure: Golden Wind, Ren Jinguji in the Utano☆Princesama series, Seiji Matoba in Natsume Yujin-cho, Akira Hayama in Food Wars!, Ryoh Grantz in Mashle: Magic and Muscles, and Jae-ha in Akatsuki no Yona. His extensive television roles also encompass characters like Dandy in Space Dancdy, Bercouli in Sword Art Online: Alicization, Tadaomi Karasuma in Assassination Classroom, and Sphinx in Dimension High School.

Throughout his career, Suwabe has been involved in several recurring collaborations. He is part of the singing unit PHERO☆MEN with fellow voice actor Kohsuke Toriumi, and he was also a member of the former voice actor unit STA☆MEN, serving as its leader. His powerful singing voice has been featured in numerous character songs and anime projects, for which he has occasionally written lyrics. He has frequently collaborated with a wide circle of fellow prominent voice actors, including many from the My Hero Academia and Jujutsu Kaisen casts.

Suwabe's talent and contributions to the voice acting industry have been recognized with numerous prestigious awards. He won the Best Supporting Actor award at the 7th Seiyu Awards in 2013 and again at the 12th Seiyu Awards in 2018. He was also part of the group ST☆RISH that won the Best Singing Award at the 6th Seiyu Awards in 2012. In 2019, he received the Personality Award at the 13th Seiyu Awards for his work as a radio and event host, and in 2023, he was presented with the Kei Tomiyama Memorial Award at the 17th Seiyu Awards. Beyond acting, he is known for his love of cars, motorcycles, and bicycles, and for his extensive collection of over one hundred pairs of sneakers.