Zygor, known as Satake in the Japanese version, is a character in the Yu-Gi-Oh! anime. He was one of Bandit Keith's companions, along with Bonz and Sid, during the Duelist Kingdom tournament.
In the Duelist Kingdom tournament, Bonz, Sid and Zygor met Bandit Keith, who agreed to coach them through the tournament, so all four of them would advance to Pegasus Castle—in reality, Keith secretly intends to use them for their Star Chips, wanting revenge against Maximillion Pegasus for humiliating him in the final match of the Intercontinental Championship. While helping them win Duels during the first day of the tournament, Bandit Keith finds out about Yugi Muto, Joey Wheeler, and the rest of the gang, and plans to eliminate them.
When Joey runs away from the group towards a waterfall, Zygor beats him unconscious, and he wakes up in cave with a Dueling Arena, complete with a Graveyard Field. Bonz challenges Joey to a Duel that he tricks him into thinking he must accept.
Bonz quickly gains the upper hand through a combination of his seemingly indestructible Zombie-Type monsters, the 30% ATK and DEF from the Graveyard Field, and the revival effect of "Call of the Haunted". However, when Yugi and the gang arrive, Joey manages to figure out their weakness and use "Shield & Sword" to switch their ATK and DEF values, winning the duel. Bandit Keith then locks the gang in, double crosses his three companions, and enters the Duelist Kingdom Finals after taking Zygor and Sid's five Star Chips by force.
Bonz, Sid, and Zygor are then seen right before the Battle City finals. The three reside in a nearby cemetery and trick people into giving up their Locator Cards. However, Yami Bakura is not intimidated by their act and challenges them to a Duel in which the winner gets all the Locator Cards, and thus goes directly to the Battle City Finals. Bakura wins in just a few moves, and then banishes them to Hell (the Shadow Realm in the dub).
Zygor's Deck is unseen; according to Seeker's laptop screen and the Duelists' profiles it displayed, he owns the card "Twin-Headed Thunder Dragon".