Mizuki Chiba is a Japanese voice actor and stage actor affiliated with Mausu Promotion. He was born on February 26 in Miyagi Prefecture, Japan. His blood type is A, and he stands 176 cm tall. He holds several licenses and qualifications, including a regular driver's license, a large motorcycle license, and ranks of first-dan in both kendo and jukendo.

Chiba began his career in entertainment with appearances in smaller local theater troupes before transitioning to professional acting and voice acting. He made his voice acting debut in 2016 with a role in the animated film Kagerou Daze -in a days-. Initially, he was represented by Numcreation. On January 6, 2025, he transferred to his current agency, Mausu Promotion.

His career encompasses a wide range of roles in anime, video games, and stage productions. In anime, he is known for roles such as Ren Tamashiro in number24, Natsuki Sogō in Futsal Boys!!!!!, and Roa Mikaze in TsukiPro the Animation. Other notable anime credits include the Goblin in Goblin Slayer II, Ganesha in Dropkick on My Devil!, and security guard roles in Actors: Songs Connection. In the realm of video games, he has voiced characters like Robin in Eternal Scarlet, Goichiro Todo in REALIVE!, and Ranmaru Mori in Sokai Tenki.

In addition to his voice work, Chiba is an accomplished stage actor with numerous credits in theatrical productions, particularly in 2.5D musicals and plays based on games and anime. His stage roles include Eli Clark (the Seer) in the Identity V STAGE series, Nicola Francesca in the musical Piofiore no Banshō, and various roles in productions such as Odd Taxi: The Diamond Does Not Get Hurt, Kuro to Shiro -purgatorium-, and series based on the TsukiPro and Aoharu Tengeki franchises. He is also a regular personality on several radio programs, including Tsukipro★Night and Karadke Danshi Kai, and has hosted numerous live events. His multifaceted talents include singing, serving as a master of ceremonies, and cooking.