Manabu Sakamaki is a Japanese voice actor born on July 6, 1982, in Saitama Prefecture. He is affiliated with the talent agency Mausu Promotion. He stands 174 centimeters tall. After graduating from the Katsuta Voice Actor Academy in 2006, he entered the training school attached to Mausu Promotion and officially joined the agency in 2008.

Sakamaki has built a career performing in a wide range of anime television series, animated films, video games, and foreign language dubbing. His work in anime includes a variety of supporting and guest roles. He is known for playing the recurring roles of Fû and Tokuma Hyûga in the long-running series Naruto Shippuden. In 2010, he provided the voice for the character Ryū Kawabata in the science fiction film Loups=Garous - The Motion Picture. His other notable anime credits include the role of Yan in Attack on Titan, Arabia Fats in JoJo's Bizarre Adventure, Suzuki in Rin-ne, and Tsukikage in Yu-Gi-Oh! Arc-V. He has also been a regular presence in the long-running anime Sazae-san, eventually taking over the role of the character Jinnroku.

In addition to his work in anime, Sakamaki has an extensive career in video game voice acting. His game credits include characters such as Callum and Gangrel in Fire Emblem Awakening, Vimme Vivaldi in the Japanese version of The Witcher 3: Wild Hunt, and Tokiko Tsuji in Corpse Party. He has also contributed voice work for major franchises like Metal Gear Solid V and Final Fantasy XV. He is also known for his role as the character Black Suit in the game and anime adaptation Blue Archive. His versatility extends to dubbing foreign films and television series into Japanese.

While he has not been noted for a high number of recurring collaborations with specific directors or fellow actors, his career demonstrates a consistent presence across the anime and video game industries in Japan. His achievements lie in his sustained activity since 2008 and his ability to contribute to a wide variety of prominent and long-running productions.