The Sinner is an American police procedural anthology television series developed by Derek Simonds for USA Network. It is named after Petra Hammesfahr's 1999 novel, which served as the basis for the first season. Bill Pullman stars as a police detective who investigates crimes committed by unlikely culprits and attempts to uncover their motivations. Only Pullman appears in every season, while the rest of the cast mostly changes for each season's story.

William Pullman is an American actor. After graduating with a Master of Fine Arts degree in theater, he was an adjunct professor at Montana State University before deciding to pursue acting. He made his film debut in Ruthless People (1986), and starred in Spaceballs (1987), The Accidental Tourist (1988), Sleepless in Seattle (1993), While You Were Sleeping (1995), Casper (1995), Independence Day (1996), Lost Highway (1997), and Lake Placid (1999). He has appeared frequently on television, usually in TV films. Starting in the 2000s he has also acted in miniseries and regular series, such as Torchwood (2011), starring roles in 1600 Penn (2012–13) and The Sinner (2017–2021). In 2021, he had a recurring role in the miniseries Halston.