Ernest Ray

Ernest Ray was the former leader of the builders that made the walls of Arkham City and one of the Political Prisoners.

Before Arkham City Incident
Ernest led the team of workers who built the walls of Arkham City. But instead of being rewarded, his house was invaded by TYGER and he was incarcerated and brought to Arkham City, so he couldn't reveal info about Arkham to the GCPD or to the Gotham Gazette.

Arkham City Incident
Ray teamed up with Dave, another political prisoner. They survived by keeping their own business and not messing with no one. Ray and Dave were encountered by Batman, who asked who he was. Ernest said that he got incarcerated unfairly, and Batman promised that he would close Arkham City.

Trivia

 * Ernest can only be encountered during the beginning of the game, he disappears after the player reaches a certain point in the game.