Many TV shows are known for their heavy use of profanity, with classics like The Sopranos, Deadwood, and The Wire featuring especially strong language.
For a long time, network restrictions in the U.S. limited the use of bad language on television. It wasn't until the 1990s, with the rise of cable channels such as HBO, that swearing became more common and accepted on TV. This new wave of television pushed boundaries, delivering an unprecedented amount of profanity that could rival the works of filmmakers like Quentin Tarantino and playwrights like David Mamet.
Most of the shows on this list aired on HBO, but not all. Comparing the number of F-bombs in a series versus a movie is challenging—movies like Uncut Gems and The Wolf of Wall Street are often cited as the most profane films. This ranking considers not only the volume of swear words but also their memorability and impact, making it somewhat subjective rather than purely data-driven.
Dexter is included mainly because of the character Doakes, whose profane outbursts were iconic and a highlight of the show's early seasons. Debra, another character, also frequently dropped strong language throughout the series.
"Dexter is here largely because of Doakes, whose swearing was iconic and a highlight of the show’s better/earlier seasons, but also, Debra wasn’t too bad at dropping a ton of F-bombs either."
Overall, the shift in TV around the 1990s allowed creators to explore grittier, more realistic dialogue that heavily features profanity, enhancing the storytelling in many acclaimed shows.
Author’s summary: The rise of cable channels like HBO in the 1990s transformed TV language, enabling gritty shows with memorable and extensive profanity that became a defining feature of modern television drama.