Aston Collins

Professor Collins has been in the hierarchy of Red Shield directly behind Joel Goldschmidt. However, he betrays the Red Shield for his career and joins Cinq Fleches to pursue his ambition of bringing his works in the limelight.

Plot
Dr. Aston Collins was once the second-in-command of the Red Shield, primarily in charge of researching the chiropterans with Julia as his assistant. He grew increasingly frustrated at being unable to ever publish his research. Van Argiano approaches him about joining Cinq Flèches and Collins agrees and betrays the Red Shield by revealing the location of the organization's headquarters. He convinces Julia to join him, but turns against her after Amshel makes her Diva's personal physician. Sent into a jealous rage, he confronts Julia and attempts to murder her so he can regain his position. Right as he is about to shoot her, David runs in and acts as a human shield to protect Julia. Though he shot himself, David is able to throw a scalpel into Collins' arm which causes him to run away screaming. Collins is never seen again in the series and his current status is unknown.

Personality
He estimates Julia as a brilliant mind and diligent assistant that he would like to work with. Not only for this reason, in turn, there is a certain animosity towards David, he begrudges him the proximity to Saya that he would look for study purposes rather be in his care.

The ambitious careerist plaguing the fear that his scientific work would be forgotten, joins Cinq Fleches. Because he's absolutely committed to secrecy joining Red Shield never publish his research findings must. Write his name in any way in the history books, but his stated goal, only what he is talking with an individual whom he believes that they share his thinking, and also his passion for research. This vanity makes him also accessible to manipulate.

Dr. Collins is also fallible to jealousy. When Julia is promoted to become Diva's personal physician, he gets mad at her. Near the last episodes, he even attempts to murder Julia.

Skills
He is responsible for all research within the Red Shield organization that affect the Chiropterans. He is the mentor of both Julia Silverstein and Van Argiano. After joining Cinq Fleches, he is assigned the responsibility of being Diva's personal physician. This post of his is succeeded by his once favourite student Julia.

Weapon
Dr. Collins is shown to use a SIG Pro SP2022 to shoot Julia but David saves her just on time to take the bullet himself.