It's been just over a year since Peter Krause's beloved character Bobby Nash met a heartbreaking end on 9-1-1, but fans can finally celebrate: the actor is officially returning to television this fall. Krause has signed on as a lead in NBC's upcoming drama Line of Duty, swapping his firefighter turnout gear for a badge and a whole new set of challenges.
In Line of Duty, Krause plays Mike Hollingsworth, the patriarch of a family deeply embedded in American law enforcement. Alongside his wife Jane (Hope Davis), Mike navigates a web of jurisdictional battles that often spill over into family dinners. Their children—Russ (Taylor Bloom), Clare (Kat Cunning), and Micah (Tommy O'Brien)—each work for different agencies, including the FBI, U.S. Marshals, Secret Service, and Department of Justice. The series promises to explore how personal loyalties clash with professional oaths when a routine case spirals into a deadly conspiracy.
Created and executive-produced by Josh Safran (Quantico, Gossip Girl), the show also features Charlie Barnett (Chicago Fire) in a key role. The official logline teases a high-stakes narrative: "After a seemingly cut-and-dry case turns into a deadly conspiracy, they must use the expertise from a lifetime of protecting civilians and politicians to protect one another and bring the killer to justice … even if it means betraying their sworn code."
For Krause, this marks a major pivot after his emotional exit from 9-1-1 in Season 8. His character, Bobby Nash, sacrificed his life to save a colleague during a catastrophic lab accident. While Krause has made brief guest appearances since, Line of Duty marks his first full-time series regular role since leaving the ABC procedural. Fans who have missed his magnetic presence will finally have a new weekly drama to sink their teeth into.
NBC is betting big on Line of Duty as part of its fall lineup, even as the network shifts more resources toward sports coverage. The series will air at 10 p.m. and joins a slate that includes returning hits like One Chicago Wednesdays, Law & Order, and SVU. Two other new scripted shows—The Rockford Files and a reboot of Newlyweds starring David Boreanaz—are also on the docket. However, The Hunting Party has been canceled and will not return.
If you're craving more family-driven drama with a law enforcement twist, you might also want to check out Ransom Canyon Season 2, which returns to Netflix in July 2026 with new faces. And for those who love a good conspiracy thriller, Sugar Season 2 drops on Apple TV+ June 19, bringing its sci-fi noir vibes back to the small screen.
With a talented cast, a gripping premise, and a proven showrunner, Line of Duty could be the next big hit for NBC. Krause's return is sure to draw viewers who have followed his career from Six Feet Under to 9-1-1 and beyond. Stay tuned for more updates as the fall premiere approaches.
