
Quick answer — Kouichi Makishima voices Potocki in Orb: On the Movements of the Earth, Minoru Aramata in Kuromukuro.
Kouichi Makishima voices Potocki (Orb: On the Movements of the Earth), Minoru Aramata (Kuromukuro).
Potocki is voiced in Japanese by Kouichi Makishima.