Reacherseason 3 is a blend of new and old faces, although much more the former than the latter.Lee Chilld’sJack Reacherbooks, on which the Amazon show is based, are written as standalone adventures that just so happen to be set within the same continuity. They’re intended to be read in any order, so each installment often has a flood of fresh introductions.Amazon’s adaptation doesn’t follow quite the same formula as the source material, but it certainly comes very close in terms of the attrition rate of its characters and the semi-anthological storylines.
As a result ofReacher’s relative adherence to Child’s blueprint, very few members of theReacherseason 2 castreturn for the show’s third outing. That being said,Reacherseason 2’s endingdoes leave the door open for certain stars to come back to the story. However, as an adaptation ofPersuader, the seventh book in Child’s series,Reacherseason 3 has little use for most of the show’s past actors. Interestingly, that hasn’t completely prevented Amazon from recalling certain figures and deviating from the source material.

Alan Ritchson As Jack Reacher
Date Of Birth: August 16, 2025
Actor:AsReacher’s leading man, Alan Ritchson is the only actor who is really needed for the show to continue each year. Known for playing physically strong (and occasionally comedic) characters, Ritchson’s casting asReacher’s titular figure led to a resurgence in his movie career. Alongside the Amazon project,Ritchson starred as Aimes in 2023’sFast X, Ed in 2024’sOrdinary Angels, and alongside Henry Cavill in 2024’sThe Ministry of Ungentlemanly Warfare. Earlier in his career, notable roles included Aquaman in four episodes ofSmallville, and Thad Castle in 39 episodes ofBlue Mountain State.
2005-2010
2014
2017
2018-2021
2023
Jack Reacher
2022-
Character: After leaving behind most of the surviving members of the110th Special Investigations Unit inReacherseason 2, Ritchson’s character once more begins the third run of episodes as a wandering lone wolf. That being said, his talent for leadership and strong skill set means he’s pretty much always capable of rounding up as much help as he needs whenever he runs into trouble. Reacher is often the linchpin in most plans, although season 3 sees him operating in an even smaller group of allies than usual, and it’s not his plan either.
Maria Sten As Frances Neagley
Date Of Birth: August 17, 2025
Actor:Sten returns to the coreReachercast in season 3, making her the only actor other than Alan Ritchson to boast this plaudit. Before being cast as Frances Neagley, the Danish-born actress didn’t have many notable acting credits. That being said, she did still have quite a lot of experience.The 2008 Miss Denmark Universe popped up briefly in 2015’sStraight Outta Comptonin an uncredited role, then went on to appear in several smaller projects before entering the DC universe as Liz Tremayne in 9 episodes of the now-canceledSwamp Thingin 2019.
2015
2018
2019
Frances Neagley
Character: Neagley served with Reacher in the 110th, and the pair have maintained an on-again/off-again friendship/camaraderie since resuming civilian life. What’s perhaps the most interesting thing about Neagley inReacherseason 3 is her presence in any capacity.Neagley isn’t inPersuader, so including her in the show at this point is a huge deviation from the source material. However, it also lends a stronger sense of consistency that the books intentionally lack. It was announced afterReacherseason 2 that aNeagley spinoff showhad been greenlit.
Sonya Cassidy As Susan Duffy
Date Of Birth: 1986/1987
Actor:A relative unknown in the US, Sonya Cassidy has carved out an impressive career for herself in her native UK. Although not a household name in either nation, Cassidy has been working steadily since 2009 in a mix of period dramas and sci-fi projects.Reacheris her biggest role to date, and she has worked very hard to get there. She appeared as Hester in 8 episodes of the Isaac Asimov-inspiredHumansin 2016, but her most-reprised role remains Liz Dudly inLodge 49.
2012-2013
2012-2014
2016
2022
Susan Duffy
2025
Character: Susan Duffy is from the pages of Lee Child’sPersuader.She’s a DEA agent who recruits Ritchson’s characterfor assistance in taking down a criminal organization, as Reacher has skin in the fight too. The two become romantically entangled as the story progresses. This is nothing new forReacher, as the show’s title character lives a nomadic existence. Therefore, he tends to find new love interests as he wanders.
Olivier Richters As Paulie
Date Of Birth: June 10, 2025
Actor:Olivier Richters is a Dutch bodybuilder who has also been acting on a regularly sporadic basis since 1991. Coming in at over 7 feet tall, Richters is cast often in enforcer roles, andReacherseason 3 keeps that trend alive. His acting career started to really pick up steam in 2020 when playing Duncan inGangs of Londonstarted to bring about bigger and bigger roles.He stepped into the MCU as Ursa in 2021’sBlack Widowand played Hauke in 2023’sIndiana Jones and the Dial of Destiny. He also played Krom in 2024’sBorderlands.
2020
2021
Indiana Jones and the Dial of Destiny
2024
Paulie
Character: Paulie is one of the biggest threats to Ritchson’s character inReacherseason 3, if not the biggest. PreviousReachervillains have fallen very short of the main character’s physicality, butPaulie surpasses Reacher in both height and physical strength. He’s one of the key figures in the criminal organization that Reacher is infiltrating, and theReacherseason 3 trailer quickly revealed the two would come to blows.
Reacher Season 3’s Supporting Cast & Characters
The show’s third season brings in many other roles of varying importance to move the story along
Amazon’s take onPersuaderis filled with characters from the book, but also new characters who have been created especially for the show. WhileReacherseason 3 is very similar to the source material, the difference in medium means there have had to be additions and alterations made, and those tweaks ultimately caused new characters to arise organically. They don’t all have a huge impact on the larger story, and some are only there for worldbuilding purposes, but they all play at least a small role inReacherseason 3.