A younger version of the Doctor is seen in a flashback when Wrath is talking to Roy Mustang, discussing his creation, it is seen that he always had the golden tooth then. He appears later at Fort Briggs to heal Solf J. Kimblee, who lost his fight badly against the vengefull Ishvalan Scar. He then is absent from the story for a long period of time, that is, until Edward and co. run into him after Envy commits suicide, continuing on their search for the Homunculi's Father. He is shocked to see that Roy Mustang is with them, which leads into thier plan perfectly, being that Mustang has been slated to be the Fifth Sacrifice in Father's Nationwide Transmutation Circle. He himself does not engage them himself, however, he still has the people who were going to be Wrath at his disposal, and they