Johnny Gill

Johnny Gill is a member of the Black Order and a scientist in the European Branch's Science Division.

Apperance
Johnny is one of the seemingly younger members of the Science Department. He is often identified by the black skull on his shirt and his big glasses.

Personality
Johnny is friendly and amiable, but one of the weakest members of the Science Division. Prone to passing out from low blood pressure, he is taken to the Medical Division on a regular basis, initially by Tup Dop and, after Tup's death, by Tup's sister, Cash Dop. Despite all of the hatred harbored within the Order towards Allen, Johnny has remained steadfast on Allen's support side, defending him constantly when he hears rumors going around in Allen's disfavor. Because of Allen getting hurt badly while defending Johnny during the attack on the European Branch Headquarters, Johnny has dedicated himself to getting stronger so that, when Allen needs it, he can support him in return.

History
Formerly a member of the North American Branch Science Division, along with his best friend Tup Dop, Johnny has presumably served the order for a while to have been able to secure a promotion to the European Brach, despite his age.

He was one of Suman's friends; he was the only one who knew that Suman was lonely. Because their rooms were so close together, they would often play chess together, in which Johnny would win most of the time. Whenever Suman would lose, he would ignore Johnny the next time they met in the cafeteria but always asked Johnny to a game whenever he returned from missions.

Invasion Of Headquarters Arc
When he found out that Suman was dying, his face became dominated by tears and heartbroken sorrow. The manga also highlighted his presence in panels, making this particular scene one of the more emotional scenes of the series.

After Allen returns with the Ark, Johnny defends him against the accusations that he is a traitor working for the Noah. A short time later, Johnny is impaled through the chest by the Noah Lulu Bell, disguised as Andrew Nansen, as her Akuma forces invade the Black Order HQ. He is later thrown by the Skull Tapp Dopp and is finally attacked by an Akuma. However, Johnny is saved before the Akuma could eat him, and he begs Allen to save everyone. Johnny disappears, along with Bak Chang, Reever, the Generals, the scientists, Miranda, and Noise Marie, when the level 4 Akuma destroys the fifth laboratory. He is later shown to be alive and in stable condition. He pleads and weeps over the Skull Tapp. When Tapp dies, Johnny is in tears.

Johnny soon meets Tapp's sister Cash and seems to be overjoyed, even hugging her and screaming that she has her brother's belly, which Cash is incredibly annoyed by. Besides Bak, Reever and Komui, he is the most prominent member of the Science Department.

Seed of Destruction Arc
When Reever and the other Science Section heads, Regory Peck and Mark Barrows, travel to North American Branch to study the newly revealed Alma Karma, Johnny accompanies Reever as his assistant. There, Johnny becomes sickened by the revelation of what Yu Kanda and Alma had been forced to do to one another and throws up on Regory, ending in them getting dismissed from the meeting.

Almost immediately after, North American Branch is invaded by the Earl, who lets in several member of the Noah Family. The Noah take Johnny and the others hostage to lure Allen in for Alma Karma's awakening. Johnny and the others bear witness to Alma's awakening and consequential assault on the North American Branch.

After the attack, when Allen is detained, Johnny and the other members of the Science Division work on keeping up their strength so they can find a way to help Allen. When Allen escapes and Johnny hears the news that Allen has been branded a traitor and target for capture, he can only ask why it all had to happen.

Three months after Allen's escape, Johnny has taken to working out daily and has not needed to take as many trips to the hospital as he once did. Jiji Lujun, finding this odd, drags Reever and Cash along with him to invesitgate when Johnny dismisses himself. When he is found in the off-limits records section, trying to taken Allen's case information, and he is confronted by Reever, who asks if he plans on going to Allen, Johnny announces he would like to resign from the Science Division, with his reason being that his grandmother is in ill-health due to her age and that he is the only member of his family left to carry on the family name. To keep Johnny from being punished for not taking the proper steps to resigning, though, Reever refuses to listen to Johnny's request.

Trivia

 * Johnny is responsible for design and sewing of the Exorcists' uniforms.