Father: Are you mistaking me for someone? Hm? Wait... Hohen... Do you mean Van Hohenheim? What is your relation to him? Edward Elric. Alphonse Elric. And... Van Hohenheim. The brothers' teacher, Izumi Curtis, has the potential. He's alive... That's right... There's no way it would die... But to think it's even have children...

So, you've exhausted the stone's regenerative power. Do not worry, my child. I shall make you anew. With your memories as they are. Before meeting the Elric brothers for the first time, Father and Hohenheim's actions are coordinated very specifically to match up in the manga, leaving it ambiguous if he and Hohenheim are indeed the same person. Despite basing itself wholly on the manga, the 2009 anime does not include the scenes of him talking with Lust prior to her death and when he decided to leave Wrath in charge of Mustang. Father is not present in the 2003 anime series, in which a completely different character is the main villain.Father's original flask-bound form was most likely inspired by real-life concepts of Homunculi. Supposedly, if an alchemist was successful in creating such a being, he was to keep it inside of a glass flask for a certain period of time, as it would die in its "infancy" stage outside of it. But why?! I just wanted to understand this world's knowledge. I wanted to experience it, free. I just wanted to be free! FREE TO KNOW! It's remarkable how weak they are. They have an innate fear of the dark. And how do they handle this fear? They simply pretend that it doesn't exist. They run away from it. How could anyone say humans aren't weak? It's an inherent trait. How about we take advantage of their weakness? They certainly do make a good natural resource. Right? It's all they're good for.

Homunculus: Slave? "Humans with no rights or freedom who are bought, sold, and exchanged between other humans in legal conveynence", right?

Foolish"? I do not think that. Do you humans see a beetle crawling on the ground and think of it as "foolish"? Even when an insect is struggling, aren't your levels so different that you don't spare any emotion? What I feel towards you humans is the same as that. Kid, hey kid. Hellooooo. Anyone home? Ah, you're ignoring me. Come here. C'mon, over here. On the shelf. Here. Yet, he only cares about Hohenheim and the Elrics because they are useful for his goals. Even his "children" are nothing but tools to his eyes, as evidenced when he did not pay the slightest bit of attention to Pride's highly weakened state, which he could have fixed in a matter of seconds, at the time of the final battle. This proves he is willing to cast aside his "love" for his children if it means attaining the knowledge he desires. Father: YOUR FATHER? I'm surprised. So he had children. Hahahahahahahahahaha. If I'm not mistaken, your surname is Elric, is it not? Father: Greed. You are both my son and a piece of my soul… So why would you betray your loving father?

Father: … He’s your father?! I had no idea he had children! Haha! … If you are indeed his progeny, then why is it your family name is Elric? At the very beginning when he was only named "Homunculus", Father looked like an orb of dark matter, (likely pure, physical knowledge) who could form an eye, a grinning mouth, and some small tendrils. He had to remain in the flask in which he had been created, otherwise, he would have died.

I only wanted to obtain perfection. I wanted this world's knowledge for my own! Why should I be punished for that? What's wrong with craving knowledge? What's wrong with seeking perfection? Ironically, Father who craved for freedom, chose to willingly confine himself underground for most of his life. It must be noted that when confronted to Truth (a higher being he could not subjugate in any manner) after his death, Father lost all composure and began yelling frantic pleas for mercy and self-serving attempts to justify his unspeakable crimes; highlighting the petty, disgusting selfishness hidden behind the high and mighty facade.

Ed: Elric is the surname from our mother's side! Hohenheim and our mother haven't been entered in a family register! We have no familial connection to him. Greed: I mean, you know the answer to that better than anyone, Dad… I'm Greed the Avaricious… You were the one that made me this way, after all. I'm just being myself. I simply had larger ambitions than spending my life working for you. The gate that Father appears in front of is completely blank, indicates that he never learned anything, just like Truth stated. Father's image bears a striking resemblance with the image concept of God as an old man with robes in multiple religions. Ironically, the nature and symbolism of his origin, methods, and goals actually make him the closest analog the Fullmetal Alchemist franchise has to Satan. Father's primary power is his seemingly limitless knowledge. He came to the world knowing already every existing concept. When he was first confronted with something, he demonstrated said knowledge by giving a dictionary-like definition of it. Since he comes from the Truth itself and was created through Alchemy, he knows everything about it and can put into practice Alchemic rituals of which mankind has never heard of.I only wanted to obtain perfection. I wanted this world's knowledge for my own. Why should I be punished for that? What's wrong with craving knowledge? What's wrong with seeking perfection? Father (in Japanese: お父様, Otō-sama), originally known as Homunculus or The Dwarf in the Flask (in Japanese: フラスコの中の小人, Homunkurus or Furasuko no Naka no Kobito), is the main antagonist in the Fullmetal Alchemist manga series and its second anime adaptation Fullmetal Alchemist: Brotherhood. Lust: No, I still haven't heard from them. But I'm sure they'll successfully pinpoint the rats' hideout. When he became a living Philosopher's Stone, he used the blood he received from Hohenheim to create a duplicate of the latter's body to inhabit as well as escape his flask. Immediately after the transmutation of Xerxes, Father was fully identical to the physical form of Hohenheim.