
Quick answer — Shuuta Morishima voices Isobe in Kamisama Kiss, Ikeme in Wandering Witch: The Journey of Elaina, Zelgeon in Helck and 8 more characters.
Shuuta Morishima voices Isobe (Kamisama Kiss), Ikeme (Wandering Witch: The Journey of Elaina), Zelgeon (Helck), Matthäus Callaway (Chaika -The Coffin Princess-), Toshiie Maeda (Ninja Girl & Samurai Master), Shinemon Nitta (Cardfight Vanguard), Tsukiyomi (Neppuu Kairiku Bushi Road), Tico (Male) (Devil Survivor 2: The Animation) and 3 more.
Isobe is voiced in Japanese by Shuuta Morishima.