Don Zaloog
首領・ザルーグ
A duel monster spirit of the same name who is revealed to be a member of the Shadow Riders. Zaloog infiltrates Duel Academy pretending to be a detective named Magure, hired to help the main heroes hide the keys necessary to release the Sacred Beast cards from the Shadow Riders.
He is also a member of the duel monster thieving group named “The Black Scorpion.”
