Kayli Mills is an American voice actor known for their extensive work in English dubs of anime and video games. Born in Michigan on December 10, 1994, they developed an early interest in performance, creating song covers and voice acting online during middle school. This passion led them to study abroad in Japan and Australia, experiences that helped shape their pursuit of a career in voice acting.

Mills began working professionally in the industry around 2016 and has since become a prominent figure in anime localization. They are recognized for a versatile vocal range, bringing to life a wide spectrum of characters, from energetic and comedic roles to dramatic and stoic heroines. One of their most notable and long-standing roles is Emilia in the popular fantasy series Re:ZERO -Starting Life in Another World. They also voice Alice Zuberg in Sword Art Online: Alicization, another central character in a major franchise. In a starkly different performance, they portray the hyperactive and lovable Clara Valac in Welcome to Demon School, Iruma-kun, often voicing multiple members of Clara's family as well.

Their filmography includes a vast array of other anime roles. They have played Hinata Kawamoto in March comes in like a lion, Runa Yomozuki in Kakegurui, Takagi in Teasing Master Takagi-san, Sasha Necron in The Misfit of Demon King Academy, and Yunyun in the KonoSuba series. They have also taken on roles such as Kisara in Engage Kiss, Yakumo in Rumble Garanndoll, Yuri in Housing Complex C, Colleen Messala, Emma, and Priscilla Farnese in Record of Grancrest War, Viola in The Duke of Death and His Maid, 416 in Girls' Frontline, Alicia in Full Dive, Suzuno in LBX Girls, Katja in Drifting Dragons, Kaname Arisugawa in TONIKAWA: Over The Moon For You, Kasumi Nakasu in Love Live! Nijigasaki High School Idol Club, and Hiori Hirahara in Blue Reflection Ray.

Beyond anime, Mills has an extensive career in video game voice acting. They are known for voicing Keqing in the global phenomenon Genshin Impact and Rapi in Goddess of Victory: Nikke. Other significant game credits include Akira Kazama in Street Fighter V, Cissnei in Crisis Core: Final Fantasy VII Reunion and Final Fantasy VII Rebirth, Riley Miller in Valkyria Chronicles 4, and Misako in the River City Girls series.

Mills's contribution to English dubs often extends beyond voice performance. They are also a skilled writer and lyricist, having provided ADR scripts and English song adaptations for numerous series. Their writing credits include work on shows such as Cells at Work!, D4DJ First Mix, Magia Record, PuraOre! Pride of Orange, and A Place Further Than the Universe. They have also performed insert songs for series like In/Spectre. In addition, they hold a certification in audio engineering.

In their personal life, Mills is open about their identity as a non-binary person and uses they/she pronouns. They have also used their platform to speak out as a survivor of abuse, becoming an advocate for trauma awareness and safety within the entertainment industry.