| Benny Haha |
|Voice Actor:|| Kerrigan Mahan (Season 1) |
Michael Sorich (Season 3)
Benny Haha also known as Gyujiroh Japan, is the third of the four Temple Guardians, as well as being Mimi's "twin brother" in the English dub of the anime (In the Japanese, this is not shown).
He is often seen piloting a robot. In his Temple duel against Shobu, he unfairly used cameras installed in various statues to look at Shobu's hand as well as using the information to scare him and gain an unfair advantage.
He returns in Season 2 as Gyujiro Japan and he defeated Jamira in the Duel Masters Battle Arena Tournament finals, but he is still evil. He tricked Hakuoh before their official match by kidnapping Mikuni and Makoto Aizen. Afterwards when he was not able to defeat Hakuoh in a duel, he injured Hakuoh so he would not be unable to duel him the next morning in the Finals. He ended up dueling Shobu again, but lost.
He is also working with Yumama. After he lost to Shobu, Yumama trapped him in a room with George. They both escaped inside The Battle Arena by digging themselves out and claimed to the crowd that she have been defeating the other contestants before the official duel just so that she can duel Shobu.
He dueled against Shobu and was defeated. But the game they played was Magic: The Gathering. In the manga he was introduced the same as Mimi's brother and a White Soldiers member.
In Shobu's memorial after he saved the world from Adam, he attended the memorial wearing funeral clothes.
He first uses a Water Civilization deck in his duel in the Temple against Shobu.
Duel Masters Charge
He evolved his previous Water Civilization deck and made it stronger.
Wave Striker Deck
He later used a Light, Darkness and Nature deck based on the Wave Striker ability in the Duel Masters Battle Arena Tournament's semi finals.
Duel Masters Cross
Duel Masters Cross Shock
- He has an IQ of 200. (Sometimes 400)
- In a vote made by CoroCoro comics in order to determine the favourite characters of fans, he only has 1 vote, proving that he is truly the single most unliked character of the Duel Masters series.
- He resembles the Duel Masters Versus character Erito Erairo, but is different in personality. His personality is more reminiscent to those of Komei.