What is the nickname of Reginald Cousins?

Reginald Cousins’s nickname is Bubbles. He is a central civilian character in HBO’s The Wire, portrayed by Andre Royo.

Bubbles is a heroin user, street informant, and sometime thief who moves through Baltimore’s drug trade while providing information to detectives, especially Kima Greggs and Lester Freamon. His intelligence, vulnerability, and efforts toward recovery make him one of the show’s most human characters.

For much of the series, other characters call him only “Bubbles,” and his given name is revealed later. In Season 5, he identifies himself as Reginald, confirming the full name Reginald Cousins. The nickname is often shortened affectionately to “Bubbs.”

Viewers sometimes confuse Bubbles with other memorable nicknamed characters, such as Stringer Bell, Bodie Broadus, or Poot Carr. Those are separate characters; Bubbles is the recovering addict and confidential informant whose story concludes with him living with his sister and attending recovery meetings.