
Quick answer — Hikaru Tanaka voices Tsukasa Mukai in Skip and Loafer, Golf in Mobile Suit Gundam Hathaway, Ooyama in Mecha Ude: Mechanical Arms.
Hikaru Tanaka voices Tsukasa Mukai (Skip and Loafer), Golf (Mobile Suit Gundam Hathaway), Ooyama (Mecha Ude: Mechanical Arms).
Tsukasa Mukai is voiced in Japanese by Hikaru Tanaka.