Wrath - 2003 anime

Wrath (Japanese:ラース, Rāsu) is a young Homunculus created by Izumi Curtis in an attempt to revive her son. He is a character exclusive to the first anime, named after another Homunculus from the manga.

In the anime, Wrath is Izumi's son, who died before or a little after he was born. She tried to resurrect him and failed. Wrath spent much time in the Gate, waiting and wanting to go out. The Gate opened while the Elric Brothers were trying to resurrect their mother. It was then when Wrath gained Edward's arm and leg.

Long after, he says, he opened the Gate himself and then lived on Yock Island, the same island where the Elric Brothers spent one month. Following a quick battle with Izumi and the Elrics, he is forgiven by the former and allowed to stay with the Curtis family. But after being captured by the military and found by Envy, who feeds him his first Red Stones, Wrath joined the other Homunculi. As time went on, he began to think of Sloth as his mother.

When Sloth was being repeatedly slashed by Lust as a distraction so Ed could get his mother's body bone, Wrath appeared and took it before Ed, fusing it with himself. Then, Wrath went back inside and stopped Lust from attacking 'mommy'. Sloth tried to run away, but Ed followed her. Wrath was about to follow them, but Lust stopped him. They fought until Wrath found the locket with the hair of the person Lust looked like, and killed her.

After that, he went to save Sloth, and fused himself with her, to "be closer to her". However, because he still had Trisha's (Ed's mother) bone fused with him, being so close to Sloth paralyzed her. Ed took that chance, and used alchemy to make Sloth evaporate.

Later, Izumi appeared and tried to convince Wrath to come with her. Wrath, insisting that Sloth was his real mother, didn't believe Izumi and ran off. He didn't appear again until he, Dante, and Envy were inside the underground city. He ran to Dante and Envy, clinging to Envy while begging "Please!! Please bring Mommy back!!". Envy kicked him off and Dante opened the Gate with Rose's baby, black tentacles taking Wrath's right arm and left leg, originally being Ed's arm and leg.

Afterwards, he was left on the floor, until Ed was brought back to life after being killed by Envy. Ed asked Rose to take Wrath with her above ground. In the last episode, he was seen in the Rockbell resident, with an automail arm and leg and was living with Winry and Pinako, until he decided to leave.