Which character is a stick-up man who robs drug dealers?

The character who is a stick-up man who robs drug dealers is Omar Little.

Played by Michael K. Williams, Omar is an unaffiliated Baltimore robber who targets drug crews rather than ordinary civilians. He and his associates use surveillance, intimidation, and sudden raids to steal cash and narcotics from organizations such as the Barksdale and Stanfield crews.

Omar first becomes prominent in Season 1, when he targets Avon Barksdale’s operation. His signature look—a long coat, a sawed-off shotgun, and a whistle—helps turn him into one of The Wire’s most recognizable figures. He also follows a personal code, including a rule against harming civilians, although his violence and criminal career remain central to the character.

A common mix-up is confusing Omar with Stringer Bell, who manages the Barksdale drug organization, or Brother Mouzone, an enforcer hired by drug kingpins. Bubbles is instead a recovering heroin addict and police informant. Omar’s role is distinctive because he stands outside the major gangs while making his living by robbing them.