He was voiced by Tom Wayland.
Professor Frank was a one of the duelist that attended the Fortune Cup Tournament. He intentionally lost to Commander Koda, so he could duel Luna in the Consolation Match. During the duel, Professor Frank tried to mess with Luna's mind so he could learn about the Spirit World and to Ancient Fairy Dragon. However, at the end of the Duel, Professor Frank's mind broke and left him in a mental state.