
Quick answer — Shigeru Nakahara voices Trowa Barton in Mobile Suit Gundam Wing, Shou Zama in Aura Battler Dunbine, Nick Hillman in Darker than Black and 10 more characters.
Shigeru Nakahara voices Trowa Barton (Mobile Suit Gundam Wing), Shou Zama (Aura Battler Dunbine), Nick Hillman (Darker than Black), Kurama (Kyousougiga), Ana Caro (Dragon Ball Z Kai: Peace for the Future! The Spirit of Goku is Forever), Jinzouningen 17-gou (Dragon Ball Super), Hino (Otaku no Video), Motonari Mouri (Sengoku Basara: Samurai Kings) and 5 more.
Trowa Barton is voiced in Japanese by Shigeru Nakahara.