
Quick answer — Minoru Uchida voices Tatsumi in Rurouni Kenshin OVA: Trust & Betrayal (Tsuioku-hen), Khaidenn Le Masire in Royal Space Force: The Wings of Honnêamise.
Minoru Uchida voices Tatsumi (Rurouni Kenshin OVA: Trust & Betrayal (Tsuioku-hen)), Khaidenn Le Masire (Royal Space Force: The Wings of Honnêamise).
Tatsumi is voiced in Japanese by Minoru Uchida.