Jakob

Jose is a character in Yu-Gi-Oh! 5D's as well as one of the three primary antagonists of the WRGP arc, and member of Yliaster.

WRGP Arc
José is the biggest member of the group, and also appears to be the oldest, as well as the wisest. He is responsible for setting up the Circuit to achieve their goal through the WRGP. He first appears alongside his comrades when Placido acquires his Machine Emperor Wisel Infinity. He later appears during the WRGP opening party and subsequently chastises Placido for his impatience and briefly explains their plans for the WRGP. During the intruder's invasion of the party, he takes note of Akiza's psychic powers.

Later, prior to Lucciano's tablet arriving, he, along with the others, watches Yusei and Akiza's Turbo Duel, and realizes that they do not have the necessary "power" yet, but he has faith that their plans will succeed through the WRGP.

Recently it is shown that Placido and Jose are in different terms with the plan. He wants to stick to the plan, and use the Signers in the event while Placido is using other methods through the Riding Roid army he created, not involving the Signers in the tournament.

He and his companions orchestrated the appearance of an imposter of Jack Atlas to test the power of the Crimson Dragon, and its supposed interference with the group's scheme. When the duel apparently ends in failure for them, parts of what appears to be the Circuit began illuminating, hinting Jose's theory to be correct. He battles against Earthbound Immortal with his Machine Emperor Karot. He is currently the only member of the Infinity Trio that has not received his Infinity Emperor tablet.

Deck
It is likely that Jose will play an Infinity Deck. Like Placido's and Luciano's deck, an Infinity Deck focuses on summoning an Infinity Machine Emperor using multiple monster pieces.