Yuki Kaji (梶 裕貴, Kaji Yūki, born September 3, 1985) is a Japanese actor, voice actor and singer affiliated with the agency VIMS. He has voiced many roles, such as Shion in No. 6, Eren Yeager in Attack on Titan, Lyon Vastia in Fairy Tail, Issei Hyodo in High School DxD, Shu Ouma in Guilty Crown, Alibaba in Magi: The Labyrinth of Magic, Kazuya Ichinose and Akio Fudou in Inazuma Eleven: Orion no Kokuin, Citron (Clemont in English dub) in Pokémon: XY, Meliodas and Zeldris in The Seven Deadly Sins, Yukine in Noragami, Speed-O'Sound Sonic in One-Punch Man, Kanato Sakamaki in Diabolik Lovers, Finnian in Black Butler, Kozume Kenma in Haikyu!!, Mei Narumiya in Ace of Diamond, Kakeru Yuiga in Norn9, Shoto Todoroki in My Hero Academia, Johnny Joestar in JoJo's Bizarre Adventure: Eyes of Heaven, Koichi Hirose in JoJo's Bizarre Adventure, and Nishikata in Teasing Master Takagi-san. He was part of the four-unit singing group G.Addict, which was part of the Goulart Knights project, and has acted as one of the main protagonists in the movie Kami Voice: The Voice Makes a Miracle. He won the Best Rookie Actor Award in the 3rd Seiyu Awards in 2009. He won the Best Voice Actor Award two years consecutively in the 7th Seiyu Awards and 8th Seiyu Awards, in 2013 and 2014. He has hosted the web radio show Yūki Kaji's Monologue (梶裕貴のひとりごと Kaji Yūki no Hitorigoto) since March 2014. His variety show Kaji 100!: The 100 Things Yuki Kaji Wants to Do debuted on the Nitteleplus channel in April 2017.