Gold-Toothed Doctor

The alchemist doctor is old man who possesses a Philosopher's Stone. He was responsible for injecting Führer candidates with the Stone.

Appearance
The Doctor is very old man who has one golden tooth,short hair,and a mustache.

Manga and Brotherhood
The Doctor is first seen in flashback scene, when King Bradley becomes Homunculus, injecting him with liquid Philosopher's Stone. Later he appears in Briggs to heal Solf J. Kimblee from his wound in battle against Scar. After the attack on Central Edward Elric, Roy Mustang, Scar and Riza Hawkeye search the maze under central command for Mei Chan, they meet him, talking about the Promised Day. Mustang tries to kill him but he calls soldiers to his help. These men are revealed to be failed Führer candidates and as such possess almost as good fighting abilities as Wrath himself. After a short fight Doctor activates a transmutation circle in Central which sucks Edward, Al, and Izumi Curtis to The Gate. Führer soldiers restrain Mustang, Hawkeye and Scar. Doctor tries to persuade Mustang to try Human Transmutation but he refuses. Doctor says they have no time and one of the Führer soldiers slashes Hawkeye's across her throat, causing her to bleed heavily. Mustang refuses to do Human Transmutation on sign form Hawkeye. The Doctor is then subdued by Jerso and the others defeat rest of the Führer soldiers. Relief, however is short, as both Wrath and Pride arrive. Wrath pins Mustang to ground by stabbing swords through his palms. The Doctor praises Wrath but Pride unexpectedly stabs him through his back to use him as a human sacrifice. A Transmutation circle under them then activates, Pride, and Mustang disappear. The doctor later appears to be dead after being used as a human sacrifice in operating the Human Transmutation circle. After Pride and Roy are gone, and the smoke clears, something is left which looks like a frog, which could have been the Doctor's true form. This is indeed possible as Envy's true form is a small lizard.