Jabberwock

is the current General of Behemoth's Behemoth's 34 Pillar Division as well as Behemoth's Son.

Plot
In the past he was removed from Behemoth's 34 Pillar Division due to his temperment, earning him the name "Crazy Dragon", however Jabberwock was reinstated by his father as the General of the army due his his father's wishing Jabberwock to become his sucsessor (this however was not mentioned to the other members of the army till after his re-instatement). It's also notable that he used to be a childhood aquantance of Laymia

His was first revealed in the manga was when Oga & Hilda confronted Behemoth on the roof of St. Ishiyama after the latters confrontation with Zenjūrō Saotome, Genma Isurugi & Ittōsai Kunieda. Believing Behemoth to be the leader of the army prepared to kill him, Oga confronted the aged man who protested he was no longer incharge. At this moment Jabberwock appeared, whishing to leave to attend to "that stupid kid ". When Hilda defencively raised her blade, Jabberwock summoned Sodom to kidnap her in his mouth and flew away on the bahamut's back. When Oga jumped on the beasts back to challenge him Jabberwock made short work of the delinquent, easily dismissing Oga's strongest attacks (he however had managed to free Hilda temporarily). Once they retrived the escaped wetnurse Jabberwock and Behemoth made their way to Akuma Academy.

He is later seen at the academy's headmaster office with Behemoth and the Captive Hilda, unpleased he has to partake in En's "game" he leaves the office where he meets with his old aquaintance Laymia. After a breif conversation about their past he reveals his position as her General stating "it's not the same as when we were kids" and leaves.

Power
As leader of Behemoth's 34 Pillar Division, it can be assumed Jabberwock is very powerful. This is demonstrated by his fear induced control over the grand bahamut Sodom. In battle he has been seen to easily take several of Oga's Zebul Emblem hits even after entering super milk time. He has even made Saotome drop a sweat.

Sodom
Jabberwock commands the Grand Bahamut with fear, acting as a mode of transport and a pet to the General.

Laymia They are childhood friend

Trivia

 * His name is based from the fictional dragon known as the Jabberwocky . His nickname as "Crazy Dragon" originates from the nature of the whimsical poem it is from and mad persona of the beast itself.