Lester Freamon is a fictional character on the HBO drama The Wire, played by actor Clarke Peters. Freamon is a detective in the Baltimore Police Department's Major Crimes Unit. He is a wise, methodical detective whose intelligence and experience are often central to investigations throughout the series, particularly with respect to uncovering networks of money laundering and corruption. He sometimes serves as an avuncular figure to several of the characters.

The Barksdale Organization is a fictional drug-dealing gang on the television series The Wire. Many of the characters featured in season one of The Wire belong to this organization. Season 1 largely deals with the Baltimore Police Department setting up a Major Crimes Unit to investigate the Barksdale Organization, led by Avon Barksdale who is portrayed as the most powerful drug kingpin in Baltimore.