Hiro Shimono (下野 紘 Shimono Hiro, born April 21, 1980) is a Japanese voice actor and singer affiliated with I'm Enterprise. His notable roles include Keima Katsuragi in The World God Only Knows, Connie Springer in Attack on Titan, Nai in Karneval, Ayato Kamina in RahXephon, Akihisa Yoshii in Baka and Test: Summon the Beasts, Norifumi Kawakami in Ace of Diamond, Kokichi Ōma in Danganronpa V3: Killing Harmony, Dabi in My Hero Academia, and Zenitsu Agatsuma in Demon Slayer: Kimetsu no Yaiba.