Line of Fire Cast, Characters, Hollingsworth Family and Peacock Series Guide

Line of Fire premieres Monday, September 21, 2026 at 10/9c on NBC, with episodes streaming the next day on Peacock. Peter Krause and Hope Davis lead the new crime drama as Mike and Jane Hollingsworth, the parents of a family whose careers stretch across the Secret Service, U.S. Marshals, FBI and Department of Justice. When what looks like a straightforward case opens into a deadly conspiracy, the Hollingsworths become personally entangled in the kind of danger they are trained to handle professionally.

That family structure is the show’s main hook. Line of Fire is not about one federal agent going home after work. The work follows everyone home because nearly every member of the Hollingsworth family serves in a different part of the federal system. The result is designed to mix case-of-the-week investigation, larger conspiracy storytelling and the kind of complicated family arguments that do not disappear just because everyone in the room knows how to carry a badge.

What is Line of Fire about?

NBC describes the series as the story of a family of law-enforcement agents who bridge personal differences and cross professional boundaries while working cases involving the FBI, U.S. Marshals, Secret Service and Department of Justice. The season begins when a case that initially appears clear-cut points toward a more dangerous conspiracy. The family then has to use the expertise gained from protecting other people to protect one another.

The premise naturally creates conflicts that a standard procedural cannot. Information that one family member is allowed to know may be off-limits to another. A decision that is correct for an agency may be damaging to a sibling, spouse or child. And when the same people share both professional secrets and family history, a case can expose old resentments as quickly as new evidence.

Creator Joshua Safran has described the balance as part procedural, part family drama and part larger mythology. That makes Line of Fire closer to an ensemble family thriller than a show built around one investigator solving a self-contained mystery every week.

Line of Fire cast and Hollingsworth family guide

Peter Krause as Mike Hollingsworth

Peter Krause plays Mike Hollingsworth, a veteran Secret Service agent and the father at the center of the family. Recent previews describe Mike as approaching a later stage of his career, but the conspiracy pulls him into a situation where professional rules and family loyalty may not point in the same direction.

Krause’s casting is particularly well suited to the premise because his television career has repeatedly centered on complicated families and high-pressure responsibility. Viewers may know him from Six Feet Under, Parenthood and 9-1-1. Line of Fire combines those two sides of his screen persona: the weary parent trying to keep relationships intact and the professional who is expected to stay calm when circumstances become dangerous.

Hope Davis as Jane Hollingsworth

Hope Davis plays Jane Hollingsworth, a U.S. Marshal and the family’s other experienced law-enforcement parent. Early story material shows Jane working directly with daughter Clare, which immediately makes the family dynamic part of the investigation rather than something saved for scenes at home.

Jane and Mike are not simply a united husband-and-wife command team. Promotional interviews indicate their relationship has complications of its own, giving the series space to explore what happens when two people who understand federal service extremely well still disagree about family, risk and responsibility.

Kat Cunning as Clare Hollingsworth

Kat Cunning plays Clare, an FBI agent and the Hollingsworth daughter. The pilot places her close to the case that triggers the larger conspiracy. Her position is especially useful dramatically because the FBI’s investigative responsibilities can overlap with the work of her mother, father and brothers without making their jobs identical.

That overlap should also intensify the family tension. Clare can be both a trained agent and a daughter whose mother still wants details about her personal life, giving the show room to move from danger to humor without pretending the family suddenly becomes formal whenever a case begins.

Tommy O’Brien as Micah Hollingsworth Jr.

Tommy O’Brien plays Micah, who follows his father into the Secret Service. Sharing an agency does not necessarily mean sharing the same view of the job. A younger agent building a career under the shadow of an experienced parent creates an obvious source of pressure, especially once the family becomes part of an active threat.

Taylor Bloom as Russ Hollingsworth

Taylor Bloom plays Russ, the youngest Hollingsworth sibling and a new Department of Justice hire. Because he is earlier in his career than the rest of the family, Russ offers a different perspective on the institutions the show explores. He has family expertise around him, but he also has to establish an identity that is not simply “another Hollingsworth in federal service.”

Charlie Barnett as Jack

Charlie Barnett plays Jack. Peacock confirms Barnett as part of the principal ensemble, while early official character material has revealed less about Jack than the five Hollingsworths. Barnett is familiar to viewers from Chicago Fire, Russian Doll and The Acolyte. His character is worth watching closely as the conspiracy widens beyond the immediate family.

Which agencies appear in Line of Fire?

The series uses four federal institutions as part of the family structure: the Secret Service, U.S. Marshals Service, FBI and Department of Justice. The show is not presenting those agencies as interchangeable. Instead, the premise depends on family members bringing different kinds of authority and experience to the same threat.

• Secret Service: Mike and Micah are connected to protective-service work.
• U.S. Marshals: Jane works as a U.S. Marshal.
• FBI: Clare is an FBI agent and is involved in the investigation that begins the series.
• Department of Justice: Russ is a new DOJ employee.

The show has also used consultants with real federal experience, according to recent cast and producer interviews. That does not turn a network thriller into a documentary, but it indicates the production is trying to make agency procedures and protective-service culture feel grounded enough for the family drama to work.

When and where can you watch Line of Fire?

Line of Fire premieres on NBC on Monday, September 21 at 10 p.m. ET/PT (10/9c in NBC’s standard listing). Peacock says new episodes will be available to stream the following day, beginning September 22. The show then continues in NBC’s Monday-night schedule.

If you follow network dramas, you can also read our coverage of The Hunting Party on NBC, Law & Order cast changes and our 9-1-1 cast guide.

Who created Line of Fire?

Joshua Safran created the series and serves as writer, showrunner and executive producer. His previous television work includes Gossip Girl and Quantico, both of which mixed relationship drama with ongoing secrets. Jenna Bush Hager and Ben Spector also executive produce, and Universal Television produces the series. Rebecca Thomas directed the pilot and is an executive producer on that episode.

Why the family angle matters

The strongest reason to watch Line of Fire may be that the family premise changes how a procedural can generate stakes. In many crime dramas, a case becomes personal only occasionally. Here, personal and professional are built into the format. A U.S. Marshal can disagree with an FBI agent and still have to see her at the family table. A Secret Service father can question his son’s judgment while knowing the son has taken the same oath and faces the same risks.

That setup also gives the conspiracy more weight. The Hollingsworths are trained to protect politicians, witnesses and civilians, yet the central threat forces them to ask whether the rules they normally trust are enough when the target is their own family.

Should Line of Fire be on your fall watchlist?

For viewers who like crime procedurals but want a stronger serialized family story, Line of Fire has a clear identity. Peter Krause and Hope Davis give the show experienced dramatic leads, while the younger Hollingsworths keep the family from feeling like a two-character story with supporting agents around them.

The most promising element is not simply the federal conspiracy. It is the possibility that every case can expose a different fault line inside the family. If the series maintains that balance, Line of Fire could work for both viewers who want weekly investigations and viewers who are more interested in the Hollingsworths themselves.