Yoki

Yoki (ヨキ) is, when first introduced, a corrupt member of the military who imposes heavy taxes on the town of Youswell, bankrupting its citizens. When the Elric brothers arrive in town, they trick Yoki into giving up ownership of the town and promptly report his actions to the military. He is stripped of his rank and lives as a homeless person on the outskirts of Central, where he meets the fugitive Scar.

In the 2003 anime, Yoki alerts the military to Scar's location, and in the subsequent raid to apprehend Scar he is killed by Lust.

In the manga, Yoki is forced to work for Scar under the threat of death. Though he tries to convince those they encounter that Scar is his servant, Yoki does as Scar commands and calls him "master". Since he has started following Scar around the country, Yoki has assumed a role as comic relief, often having pain inflicted upon him when he tries to seem superior to others. In Chapter 93, Yoki manages to hit Pride with Kimblee's car buying Alphonse and Heinkel some much needed time to escape. His reason for doing this was because everyone else "gets all the cool parts"

Trivia

 * In an omake chapter, it shows Yoki opening The Gate, and Truth taking his hair as a toll.
 * In the 2009 anime, it's shown that after Yoki is discharged from the military, he has many other attempts to get back on top, some including odd jobs and a failed attempt to steal from the Armstrong family.
 * Both Yoki's Japanese and English voice actors play Bon Clay in their respective dubs of One Piece.
 * Despite appearing useless and more of the comic relief of the group, he has shown a few times that he has very useful information when the time calls for it. For example, knowing the inner workings of a mine due to his previous military position in a mining town.