Alphonse Elric/Live-Action

Appearance
His appearance is exactly the same as the Manga's, except he is CGI-Animated due to the 2017 Film being Live-Action.

Personality
Alphonse's Personality is unaltered from the Manga and Anime Adaptations, being an Anchor for his brother, Edward's short temper. His intelligence is that to the equivalence to Edward as well, much like in the Manga and Animes.

Edward Elric
Alphonse's relationship with his older brother is easily the strongest and most significant of his personal relationships. Though the Elric brothers have wildly different personalities and argue often about the best way to go about things, they are close enough that each would readily and willingly give his life for the other. Alphonse is particularly supportive of his brother and holds a great deal of faith in him despite the fact that Edward almost constantly requires Al to look after him and keep him from getting into trouble. Edward is, himself, very protective of Al, but Alphonse's care of his brother has been described by Winry as being almost parental. While Ed continues to search feverishly for a way to return his brother to normal, Al refuses to be the only one to benefit and insists that he only wants to regain his human body if Edward can restore his right arm and leg by the same means.

Winry Rockbell
Born into the kind family that lived next door to the Elrics, Winry grew up alongside Ed and Al and means as much to them both as would a sister; she and Al are more than childhood friends, they are a family. However, Alphonse had displayed some sort of romantic affections for Winry in his youth, as revealed by his mention of how he and Ed had fought over her hand in marriage, but were both turned down. Nonetheless, Al expresses jealousy in one of the omake pieces over Edward's nearly seeing her naked in Chapter 84. For the most part, Al appears to have put those feelings behind him and takes pleasure in teasing Winry for her apparent feelings for his brother.