Quick answer — Toshiki Iwasawa voices Cunningham in Saga of Tanya the Evil, Rokusuke Kouenji in Classroom of the Elite, Tamaya in Mission: Yozakura Family and 5 more characters.
Toshiki Iwasawa voices Cunningham (Saga of Tanya the Evil), Rokusuke Kouenji (Classroom of the Elite), Tamaya (Mission: Yozakura Family), Weser (Problem Children Are Coming From Another World, Aren't They?), Cecilio Mendizábal (The Pilot's Love Song), Godwin (Banished from the Hero’s Party, I Decided to Live a Quiet Life in the Countryside), Gorth (Reborn as a Vending Machine, I Now Wander the Dungeon Season 3), Aomen oni (Peach Boy Riverside).
Cunningham is voiced in Japanese by Toshiki Iwasawa.
