
Quick answer — Kan Tanaka voices Hajime Iwai in Plastic Memories, Kenji Hiwatari in Hanasaku Iroha ~Blossoms for Tomorrow~, Alsankurt Kitra Katjvanmaninik in Alderamin on the Sky and 5 more characters.
Kan Tanaka voices Hajime Iwai (Plastic Memories), Kenji Hiwatari (Hanasaku Iroha ~Blossoms for Tomorrow~), Alsankurt Kitra Katjvanmaninik (Alderamin on the Sky), Andre Renault (Golgo 13 (TV)), Ishii (Ah! My Goddess: The Movie), Hidero (Naruto the Movie: Ninja Clash in the Land of Snow), Gorzy (ARGEVOLLEN), Mitsuzou Moriyama (Shinobi no Ittoki).
Hajime Iwai is voiced in Japanese by Kan Tanaka.