Yuki Sakakihara (Japanese: 榊原 優希, Hepburn: Sakakihara Yūki, born 18 September) is a Japanese voice actor and singer from Ibara, affiliated with 81 Produce.^[1] He is known for starring as Shu Ujigawa in From Argonavis, Nanaki Ralei in The Genius Prince's Guide to Raising a Nation Out of Debt, Asahi Ikusaba in My One-Hit Kill Sister, Yako Amano in Ayaka: A Story of Bonds and Wounds, and Jyushi Aimono in Hypnosis Mic: Division Rap Battle: Rhyme Anima.

Yuki Sakakihara, a native of Ibara, Okayama Prefecture, was born on 18 September.^[1][2] He lived "[so] deep in the mountains of Okayama Prefecture" it was difficult for him to go out for karaoke.^[3]

Inspired by a class reading in elementary school and experience with narrating his high school student council's film for the cultural festival, he decided to go into voice acting.^[4] After being eliminated in the finals of the NHK-sponsored Seiyū Stadium audition, he attended Amusement Media Academy [ja] at night in parallel with his day classes at a university, where he was a biology major.^[4][3] He graduated from Amusement Media Academy in 2017,^[5] and he chose 81 Produce as his agency after meeting with Kujira, who was a family connection to one of his college friends.^[6]

In 2018, Sakakihara became part of Sega's Readyyy!  [ja] multimedia franchise as Uta Kamijō.^[7] In February 2020, he became part of Bushiroad's From Argonavis franchise as Shu Ujigawa, the vocalist of in-universe band Epsilon Phi.^[8] In September 2021, it was announced that he would voice Nanaki Ralei, a major character in The Genius Prince's Guide to Raising a Nation Out of Debt.^[9] In 2023, he voiced Asahi Ikusaba in My One-Hit Kill Sister, Polka Shinoyama in Dead Mount Death Play, Yako Amano in Ayaka: A Story of Bonds and Wounds, Peter in Bikkuri-Men, and Jyushi Aimono in Hypnosis Mic: Division Rap Battle: Rhyme Anima.^{[10][11][12][13] [14]} Starting in April 2024, he will star in Yūya in A Condition Called Love and Juri in Vampire Dormitory.^[15][16]

In October 2023, he was a guest at Okayama Momo Anime Fes in Okayama, Okayama Prefecture, where he had a talk show and "with his native prefecture's encouragement, renewed his resolve".^[2] He won the Best New Actor Award at the 18th Seiyu Awards.^[17]

He is also a fan of Ling Tosite Sigure, singing their lead vocalist Toru Kitajima's song "Hikari no Akuma" as part of Epsilon Phi.^[18]