Herman Melville

Herman Melville (ハーマン・メルビル,) was a member of The Guild and his ability is Moby Dick.

Ability
Moby Dick (白鯨,) takes form in what appears to be a mechanical white whale that is able to float on the sky. However, Herman mentions that Moby Dick is in fact, a living being; one who freely roamed in the sky. Nevertheless, The Guild turned it into an air fortress, with more than 70% of it being modified. Because of this, he no longer had control of the whale.

It is indicated that Herman's ability also involves creating volant white whales instead of simply controlling them. This is seen when Ango takes Herman to interrogate him regarding the Guild, and a white whale similar to Moby-Dick (however much smaller in scale) was left on the bench he was sitting on.

Background
It is stated by Ango, that Herman was one of the first members to join The Guild, when the organization was in its prime, being described by him as 'beautiful'. It is later discovered that Herman was actually the Guild's leader two generations before Fitzgerald's reign.

The Guild Arc
Herman first appears along with the other Guild members, when they interrupt the fight between Kōyō and Atsushi.

He then re-appears along with Fitzgerald as they capture Atsushi. He then summons Moby Dick and they escape.

When Atsushi was looking for the control terminal on Moby Dick he spoke to Herman. Herman tells Atsushi that everyone has fled.

After Fitzgerald's defeat, he tells Atsushi and Akutagawa that someone from the outside has seized Moby Dick and that it is no use to try to stop it.

After the guild war, Herman is seen with Ango persuading him to come with him to question him.

Trivia

 * Moby Dick is the fictional white whale and the main antagonist for which Herman Melville's 1851 novel Moby-Dick is titled.