‘Reacher’ Season 4 Cast Guide: Who’s Who in the Prime Video Action Series

Posted on August 12, 2026 in entertainment

Aug 12, 2026 4:00pm PT

‘Reacher’ Season 4 Cast Guide: Who’s Who in the Prime Video Action Series

Get ready for more action and more Alan Ritchson in “Reacher” Season 4, which premieres Wednesday, Aug. 12 on Prime Video.

Our hunky, ex-military hero (Ritchson) is once again joined by a slew of new cast members as “Reacher” moves on to a fresh adventure based on Lee Child’s books. Per Amazon Prime, the logline reads: “When a chance encounter with a distraught stranger on a subway goes horribly wrong, Jack Reacher is drawn into a complex and deadly game that pits him against ruthless foes from the highest echelons of power.”

“Reacher” has a lot to live up to, as Season 3 was Prime Video’s most-watched season on the service since “Fallout” Season 1.

Whether you’re looking to discover some new faces or just returning to enjoy Ritchson’s screen presence, read below for Variety‘s breakdown of the new and returning faces.

Jack Reacher (Alan Ritchson)

Image Credit: Courtesy of Prime

A completely off-the-grid, former Army investigator who leads the series and provides the primary connective tissue between all four seasons. His methods are brutal, and this time around, he dives deeper into a conspiracy than ever before.

What else you’ve seen him in: “Playdate,” “The Ministry of Ungentlemanly Warfare,” “Ordinary Angels,” “Flipped,” “Fast X”
Tamara Green (Sydelle Noel)

Image Credit: Getty Images

After taking a stand against corruption in her city, this Philadelphia native gets stuck on the night shift and begins investigating a seemingly routine case that doesn’t add up. She’s the kind of investigator who won’t let go of her gut feeling.

What else you’ve seen her in: “Glow,” “Black Panther,” “Arrow,” “Captive”
Jacob Merrick (Christopher Rodriguez-Marquette)

Image Credit: Getty Images

A small-town cop from New Jersey who travels to Philadelphia in search of answers after his adopted daughter suddenly dies. He isn’t leaving until he has answers.

What else you’ve seen him in: “Just Friends,” “The Girl Next Door,” “Barry,” “Hawaii Five-0”
Russell Plum (Kevin Weisman)

Image Credit: Getty Images

An off-the-radar investigative journalist who has spent years building a case against the government’s most secretive operations.

What else you’ve seen him in: “Alias,” “Marvel’s Runaways,” “Scorpion,” “Flipped”
Lila Hoth (Agnez Mo)

Image Credit: Courtesy of Prime

Lila arrives in Philadelphia in search of her estranged father, a powerful politician. When she and her mother arrive in the city, it sets in motion an unexpected series of events.

What else you’ve seen her in: R&B singer, Indonesia’s most awarded artist
Amisha Hoth (Anggun)

Image Credit: Shane Mahood/Prime

Once a political dissident who survived atrocities against her country carried out by a power-hungry general, Amisha has sacrificed everything for her daughter, Lila.

What else you’ve seen her in: “Levitating,” “Cannes Confidential,” “Leo Mattei – Special Unit”
John Sampson (Marc Blucas)

Image Credit: Charley Gallay

Marc Blucas stars as the charismatic congressman, John Sampson, whose secrets are on the brink of being unveiled in Season 4. Currently the frontrunner for his party’s presidential nomination, Sampson was previously stationed in Indonesia for Delta Force.

What else you’ve seen him in: “First Daughter,” “My Life With the Walter Boys,” “Buffy the Vampire Slayer”
Elsbeth Sampson (Kathleen Robertson)

Image Credit: Getty Images for IMDb

Congressman John Sampson’s wife, Elsbeth Sampson, is played by Kathleen Robertson. As her husband increasingly faces conflict, Elsbeth never leaves his side and is undoubtedly the closest person to John.

What else you’ve seen her in: “Boss,” “Scary Movie 2,” “Tracker,” “Northern Rescue”
Detective Shaun Docherty (Kevin Corrigan)

Image Credit: Getty Images

Kevin Corrigan stars as Detective Shaun Docherty, Tamara’s cynical partner who’s vocal about his skepticism (but he’s usually right). Although he’s prone to complaining, the dry-humored detective is there for those around him in moments of need, especially Tamara.

What else you’ve seen him in: “Grounded for Life,” “The Chaperone,” “Hit and Run,” “Pineapple Express”