Mark Dacascos (Advent Master Eubulon from Kamen Rider Dragon Knight) made his second of many appearances in tonight’s episode of Hawaii Five-0 on CBS.
He plays the role of Wo Fat, a part made famous by Khigh Dhiegh in the original ’70s series as the arch foe of Five-0 leader Steve McGarrett. His official introduction to his enemies comes after the arrest of Hiro Noshimuri on the Kaimuki Golf Course, simply giving his name with a smirk before riding off in a golf cart. The episode is #113, “Ke Kinohi (The Beginning)”.
Given the history of his character, there’s no telling for how long his role will recur.