Mr. Heartland

Mr. Heartland is the person in charge of relaying Dr. Faker's orders to Kaito Tenjo and is the current Mayor of Heartland and might be one of the antagonists along with Dr. Faker.

Biography
In episode 14, Mr. Heartland was discussing with Dr. Faker about a plan to create a tournament in Heartland, called "World Duel Carnival". The tournament will have Duelists coming from all over the world. By entering many duelists under the influence of Numbers, if Kaito Tenjo wins like Dr. Faker and Mr. Heartland expect, he will obtain most of the Numbers.

It is also known, in Episode 14, that Mr. Heartland, along with Dr. Faker, built Kaito's deck.