He is the Leader of Behemoth's 34 Pillar Division as well as Behemoth's son.  His attitude is haughty and he immediately dismisses Oga as an unworthy opponent on first meeting him. Jabberwock then proceeds to have his pet dragon Sodom (described as a "Grand Bahamut") kidnap Hilda by swallowing her alive. He seems to respect Saotome and wishes to face him in battle, but is more reluctant than his father to be under the leadership of Lord En's, to whom he refers as a stupid kid. His recklessness has earned him the nickname "Crazy Dragon". His nasty temper got him expelled from the squad at a point, but he was readmitted by his father. He like Oga and Tojo, is battle crazy and finds battle to be very fun. With him happily looking forward to battling Oga, who he sees as a worthy opponent. He is not above complimenting his opponents during a battle. 

Oga Tatsumi is a first year student in Ishiyama High, a notorious school for delinquents. One day he sees a man floating by, and the man suddenly splits in half to reveal a baby boy inside! 
(Source: Crunchyroll)

He is an actor and voice actor affiliated with the Seinenza Theater Company.

He is married to his fellow voice actress [Romi Park](https://anilist.co/staff/95082/Romi-Park)

[Profile](http://seinenza.com/profile/data/yamaji_kazuhiro.html) | [Blog](https://ameblo.jp/gwanko/) | [Wiki (en)](https://en.wikipedia.org/wiki/Kazuhiro_Yamaji) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E5%B1%B1%E8%B7%AF%E5%92%8C%E5%BC%98)

[Website](http://www.gianlucaiacono.it/) | [Youtube](https://www.youtube.com/user/SirYaken) | [Instagram](https://www.instagram.com/gianlucaiacono_official/) | [Twitter](https://twitter.com/iacono_gianluca) | [Facebook](https://www.facebook.com/gianluca.iacono1) | [Twitch](https://www.twitch.tv/gianlucaiacono_official) 

Gianluca Iacono is an Italian voice actor who contributes to voicing characters in movies, cartoons, anime and more content.
Iacono is well known for voicing Vegeta in the Italian version of Dragon Ball Z, Dragon Ball GT, Dragon Ball Super and Roy Mustang in Fullmetal Alchemist.
Between 2010 and 2011, he temporarily replaced Claudio Moneta as the voice of Kakashi Hatake in Naruto: Shippuden.
Iacono currently works at Deneb Film, Studio P.V., Merak Film, Studio ASCI and other dubbing studios in Italy. 

The story follows the "strongest juvenile delinquent", Oga Tatsumi, a first year in "Ishiyama High" the school for delinquents. One day while sleeping next to a river he sees a man floating down it, he pulls him to shore and the man splits in half revealing a baby boy. This boy is the son of the demon king and he has been chosen as the one to raise it with the baby's demon maid Hilda. The story follows his life with the child and at the delinquent school.
 
Note: Includes 12 extra chapters.

A side story to the main series Beelzebub