Karla Dixon

Season 1

"Breach"

During the response to the hit squad attack on 86 Pack Street, Dixon works from the rear bench of the ZSI van with a laptop across her knees and reports that Luther's embedded tracker is still live. He is moving, but at a fraction of walking pace, which tells the van he is crawling and bleeding out at the same time. On Reacher's order she reaches for a medical intercept, finds the closest asset twenty minutes away, and redirects it to Site Two rather than a hospital: the leak that gave up the safehouse address is still open, so every hospital in the city is burned. Reacher turns the van around on the strength of her reading. Later, at Site Two, Dixon is the one who brings the portable field defibrillator up alongside Neagley and charges the paddles while Neagley works Luther's chest.

Afterward, with the target board rebuilt on a new wall, Dixon takes the financial half of the Gasket problem. The mongoose supplied the hit squad's hardware, but someone else handled the money, and the hunt for that partner becomes the team's next thread.

"Convalescence"

Dixon stays through the night at Site Two. In the small hours she carries coffee over to Neagley at Luther's cot and sets it down without a sound, because somebody in the room is finally asleep. She offers the obvious verdict, that he is lucky to be alive, and Neagley declines it. By morning Dixon is back on logistics, and Judy confirms the day's schedule with her before anyone else is up.

Season 2

"Extraction"

Dixon returns with Reacher's team for the emergency extraction of Luther and Pawbert from Zootopia Correctional Facility, running comms and calling contacts before they come into view as the team crosses a facility in the middle of a coordinated siege. Her tablet catches the pursuit force closing from one corridor over, the warning that turns the team back toward the last choke point and sets up the exchange that kills Warden Hartwell; in it she drops the mongoose coming up behind the serval as he turns. She scans the biometric lock on the final security door, the one that puts the team past the last cameras and lets Luther stop being "Rook."

S02E16-19: The Siege Arc

During the weather wall tunnel attack in "The Wall", Dixon works from outside the tunnel, coordinating the perimeter over comms while the rest of Reacher's team fights through Clawrence's shooters inside. In the afternoon investigation she brings Luther the explosive signature off her tablet: the same batch reported stolen from a demolition company three months earlier, traced not to a Tempest Holdings subsidiary but to a different shell company in the same web.

Reacher's unit is ordered to the Rainforest-Savanna junction in "Foxhole" and establishes a full perimeter there, and in "Tempest" Dixon monitors comms on that perimeter while the junction stays empty and is never attacked.

In "The Crown", Dixon breaches the Central Weather Interface service entrance with Neagley and O'Donnell and pushes into the control room behind Reacher when the corridor door goes. She puts the raccoon operative on the ground with a sweep and a control hold before he can reach his radio, then zip-ties the rest of the crew with Neagley. When Clawrence tries to fire on Pawbert a second time, the two of them converge from opposite sides and Dixon drives him to the ground; he is cuffed alive.

Season 3

"Licence to Claw"

Dixon returns with Reacher's team for the Canal District warehouse operation, and the assault runs on her clock. She has the building's cameras looping before anyone moves and reports the loop clean with ninety seconds before the drift gets noticed; Luther runs the rest of the operation off her mark, counting down to eighty-seven before he calls the execute. The team seizes stolen ZTA transit hardware and prison security bypass equipment labeled for ZCF, and by the time everyone reaches the ZSI Field Office Dixon has been running the seized units against municipal databases since the exfil. Hers is the reading that turns the hardware into a motive: somebody is building access routes they should not have.

The comms architecture for Luther's insertion is hers as well. Director Ramshorn fixes the drop at the prison chapel — third pew, under the hymnals — with Dixon collecting, and Neagley tells Luther the dead drops and coded phrases are Dixon's setup. It remains his only route out for the length of the operation. Her own send-off is shorter than anyone else's: his job is to finish alive.

"A Wanted Mammal"

Dixon is not in the room the morning after City Hall, but the last thing Director Ramshorn tells Luther is that she is already working. Leodore Lionheart did not fund his own attempt on the city; the backers who did hid behind shell companies and cutouts, and unpicking them is Dixon's thread to pull.

Season 4

"Incoming"

Dixon participates in the ZSI raid that ends with a building collapse injuring Luther. On the approach she provides real-time intelligence on perimeter camera loops, giving the team sixty seconds before surveillance drift is noticed. She is with the team that comes to Pawthorne Mansion to tell Pawbert, then stays with the vehicles when they take him to the hospital, saying it is in case they need to move fast. Pawbert suspects it is more about giving him space.

Season 5: The Icener Crisis (S05E18-19, S05E21, S05E24)

Dixon returns with Reacher's team from Vladifrostok in "The Godfather", joining the defense of Tundratown in the north sector. She operates alongside the team throughout the Tundratown assault in "Tundratown Requiem" and remains active through the escalating crisis. During the final assault on The Root in "Final Position", Dixon holds the control room — a critical position that helps secure the operation. She attends the double wedding in "Always" as a guest alongside the rest of Reacher's team.

W-Series

In "Mawlaysia", Dixon works the financial trail from inside Pawang's port authority records office, posing as a trade compliance auditor. She identifies a sovereign wealth fund being systematically looted, tracing shell companies through four jurisdictions into Zootopia's financial system — including laundered money financing a film called The Wolf of Wall Street. On the return voyage, she copies the analyst's hard drive three times and writes a sixty-seven-page report, the financial analysis alone running twenty-three pages.

In "Nighthowler", Dixon runs communications from the team vehicle at the Meadowlands boundary while the other three deploy on foot, holding a tactical overlay on one screen and Garcia's regression line on the other. When perimeter officers put tranquilizer darts into a feral Luther, it is Dixon who reads the lab data fast enough to cut across the channel and order every rifle lowered, because the modified compound turns sedatives into cardiac damage rather than sedation. She calls the twelve-hour threshold as it passes, and she calls the synthesis when it finally completes, her voice changing pitch on the one sentence she has been waiting all night to read. At the hospital she sits on the corridor floor beside O'Donnell and writes the after-action report while the rest of them wait.

In "Coup", Dixon is part of the receiving team at the Madripaw dock after the pack's escape from Naypyipaw.