Brigadier General Basque Grand (the Iron Blood Alchemist) is an ambitious alchemist known for going to any lengths to complete an assignment. His alchemy title refers to Grand's ability to transmute the iron in his blood to an assortment of guns and other weapons. Grand was also in charge of the "defunct" Laboratory 5 in Central, which he ran in hope of creating a philosopher's stone for his own purposes.
Truth is the most commonly used name for the mysterious and ethereal being that sits before The Gate and addresses alchemists who have stepped into God's domain through the use of alchemy. It appears as a pure white, nearly formless being almost indistinguishable from the rest of the endless white expanse which surrounds the Gate but for a shadowy outline which causes Truth to reflect the shape of the person it is talking to, thereby supporting its claim to be another shade of that very person. When Edward and Alphonse Elric each appeared before the Gate, Truth took on the shape of a young boy and when Izumi Curtis appeared, Truth's shape reflected that of a young woman, appeared as a vigorous man to Roy Mustang, and a white version of Father's flask form. Truth initially introduces itself as the being some people call God, the World or the Universe, at first seeming welcoming and jovial to its guests before calling attention to their hubris and opening the Gate, which forces them inside. At this point, Truth often smiles with an eerily wide and insane grin that is similar to that of the Homunculus Gluttony and Father. When the alchemist in question returns from his or her sojourn through the Gate, Truth informs them of the necessary toll for accessing the Universe's knowledge and collects it, usually in the form of a body part which disintegrates off the alchemist and reappears on Truth's form. In this way Truth is responsible for the taking of Edward's left leg and right arm, some of Izumi's internal organs, Roy's eyesight, and Alphonse's entire body. It would appear that Truth's goal is to discourage humans from treading in God's domain, as it calls Edward a fool when the young boy returns and sacrifices his arm to recover his brother's soul. (Source: Fullmetal Alchemist Wikia)
Neil is one of the chief engineers in the Research & Development sector of Fort Briggs. While privy to all the mechanical goings-on in the fort, Neil is especially knowledgeable on the subject of cold-climate metals such as those used in North Area automail limbs and is often seen acting as Captain Buccaneer's automail mechanic. A laid back and easygoing fellow, Neil is quick to make friends with those who come to the fort and is even more eager to share his expertise on the technological advancements the facility has made.
A butcher who uses the disguise of a female so he can abduct women. Manga: A wanted serial killer and later an experiment in 5th laboratory. He falls in love with Riza when she was out grocery shopping in vol. 7. By that, he was caught by the military. He later helped Maria Ross escape from prison. In the original anime, he goes after Winry, but Edward eventually gets the best of him. He was seen arrested, but later reappeared as a soul bound to armor. "I kill, therefore I am." ~ Episode 21
Selim Bradley is the son of Führer King Bradley. In the manga and 2009 anime series, Selim is the Führer's sprightly son. He frequently asks his father to tell him stories from the battlefront and interesting anecdotes from his everyday events. Selim professes a desire to become a State Alchemist so as to be more useful to the Führer and is a self-professed fan of Edward Elric. It is later revealed that Selim is not Bradley's biological son, but rather adopted from a distant relative and, specifically in Brotherhood, he is revealed as the Homunculus known as Pride. Pride is the first Homunculus that Father created. He is the most powerful of the Homunculi and seemingly the highest ranked, as he is seen giving orders to Sloth and Envy. Thus, he is generally respected by the others. He is extremely cruel, heartlessly ruthless and extremely devoted to Father's cause. He refers to his enemies as "mister (plus a nickname)" in mocking respect and often makes big smiles and casual talks before attacking. He has also proven himself to be quite clever and resourceful. His attacks mainly center around manipulating shadows, which is convenient, because it's virtually impossible to eliminate one's shadow. (Source: FMA Wikia)
Originally one of Kimblee's bodyguards, Heinkel and Darius are blasted by Kimblee along with Ed, and ends up joining Ed when he saves them. Darius' chimera form is that of a gorilla.
Ling Yao is a Xingese character exclusive to the manga and the 2009 anime series. Due to his father, the Emperor's, declining health, Ling left his country to find the Philosopher's Stone to stabilize Xing, as well as grant him the key to immortality. Although he is the 12th son of the Emperor, Ling hopes the Philosopher's Stone will help him rise in the order of succession and achieve the throne thereby securing his clan's welfare. Though he is often laid back and hungry, he's very noble and will do whatever it takes to help his clan. He is also a skilled fighter and has had many incidents involving assassination attempts at his life. He has formed a strong rivalry with Ed, by doing things such as use Ed's money to annoy him. After the 1st Greed is punished by Father, he gives Ling the secret to immortality by transforming him into the succeeding Greed. Ed tries to help, but Ling denies his help as it is the only way to help his clan in the land of Xing. Even while his body is taken over by Greed his mind and soul are kept intact and can come to the surface. Since Greed understands his strong points their relationship is on some kind of symbiotic level. After the main events of the series, he is shown to be the new Emperor of Xing; sitting on the throne, with Lan Fan still acting as his bodyguard.