This is a list of unnamed CTU agents with spoken lines and/or credited actors seen on 24.
Day 1
Data Services
Data Services speaks with Jack on the phone.
As Day 1 began, a Data Services agent received a call from Victor Rovner in Kuala Lumpur, Malaysia, informing him that Senator David Palmer would be targeted that day. The agent called Richard Walsh and passed the information along. Later, just after 2am, Jack Bauer sent a thumbprint to the same agent to have him run a check on one of the men he killed at Dunlop Plaza. The man called back within the hour and revealed that there was no record of the shooter on file anywhere.
- The Data Services agent appeared in "12:00am-1:00am" and "2:00am-3:00am."
Alberta Green's aide
Part of Alberta Green's entourage.
When she arrived at CTU Los Angeles to serve as Acting Director, Alberta Green brought several aides with her. One of these aides was excused from her office while Green spoke with Nina Myers.
- Alberta's aide appeared in "9:00am-10:00am."
Lawnmower decoy
Communicating inconspicuously
This undercover CTU agent accompanied Daniels and a third agent as additional security to aid Ted Paulson and Jeff Breeher, who were guards for the safe house at 23033 Pine Canyon where Teri and Kim Bauer were being debriefed. He initiated a series of communications over the radio while operating a lawnmower, and discreetly touched his ear to confirm he heard Daniels. The cover failed, however, and less than an hour later, he, Daniels, the third agent, Breeher, and eventually Paulson were all eliminated by the terrorists Jovan Myovic and Mishko Suba, who were targeting the Bauer women.
- The undercover agent appeared in Day 1: 3:00pm-4:00pm
- It is likely but unconfirmed that this agent is Ron, whose name was spoken by Paulson when he observed the lawnmower was abandoned.
IT woman
Less than a second before being killed.
After her cover was blown, Nina Myers hid out in the ITS room at CTU while covering her tracks and planning her escape. An IT worker discovered her in here and was subsequently shot and killed. When Teri Bauer came into the room a few minutes later, Nina suspected that Teri had seen the dead body and decided to take her hostage.
- The IT worker was played by Olivia Chang in "11:00pm-12:00am."
Day 2
Trap door agent
Tracking a call to Marie Warner.
Syed Ali tried to hide underneath a mosque using a trap door. This agent found the trap door and notified Jack Bauer, allowing CTU to capture Ali. He also traced a cell phone call from Kate to Marie Warner, another prime suspect, in an attempt to find her location.
- The agent was played by Dane Northcutt in "7:00pm-8:00pm."
Day 3
Forensics agent
Seizing Amador's virus equipment.
Following a CTU raid on the brothel where Michael Amador was hiding, some terrorist equipment and evidence was seized. A forensics agent reported to Jack Bauer that an intact incubator was found and being processed for NHS. He also stated that some fingerprints and hairs would be sent to CTU for further analysis.
- The CTU forensics agent was played by David Kelsey in "3:00am-4:00am."
Field tech
Searching through Amador's laptop.
Following a CTU raid on the brothel in Chinatown where Michael Amador was hiding, some terrorist equipment and evidence was seized. A tech agent reported to Jack Bauer that Amador's laptop had extensive schematics for the Chandler Plaza Hotel, enabling CTU to determine the first target where the Cordilla virus was likely to be released. He reappeared roughly eight hours later to examine the computer of Stephen Saunders, and expressed serious doubt that he would be able to extract anything useful from it.
- The tech agent was played by Brian Catalano in "3:00am-4:00am" and "11:00am-12:00pm."
Janitor decoy
Knocking out Jane Saunders
At the University of California, Santa Barbara, a CTU agent disguised as a janitor knocked out Jane Saunders so she could be questioned covertly. The agent was assisted after the struggle began by another plainclothes agent, Alice. Once Jane was subdued, the janitor decoy called for Kim Bauer to enter the library disguised as Jane. The plan failed, as the man assigned to observe Jane was aware of the switch, and Stephen Saunders eventually found out that his daughter was captured.
- The janitor agent appeared in "7:00am-8:00am."
Infected agent
Receiving bad news
At 8:27am, a CTU agent was discussing a report with Michelle Dessler at the Chandler Plaza Hotel. He and Michelle were two of several CTU personnel who knowingly entered the hotel without protective environmental gear, despite the imminent danger of lethal Cordilla virus infection. They were interrupted by Dr. Macer, who handed them the individual results of their virus tests. Michelle was naturally immune to the virus. But as she turned to watch the other agent crumple the paper in despair. He was infected; guaranteed to die, he slowly placed his head in his hands.
- The infected agent appeared in "8:00am-9:00am."
Female intel agent
Asking for Adam Kaufman
An intelligence agent interrupted Adam Kaufman while he was talking to Jack Bauer. She needed help coordinating with National Health Services during the Cordilla virus threat.
- The female CTU worker was played by Angelena Swords in "9:00am-10:00am."
Strike team member
Restraining Tony
A TAC agent told Jack he had a priority call from Kim. Later, the agent restrained Tony Almeida after Jack Bauer ordered Tony's wife Michelle to let herself be captured.
- The strike team member was played by David Fabrizio in "10:00am-11:00am."
- David Fabrizio also played D. Davis in Day 5.
Day 4
Forensics agent
Reporting back live footage to CTU
After the successful raid by Jack Bauer and the Marines on the terrorist compound ran by Omar, a CTU field team of forensics and recovery agents scoured the location. They sent back images of the dead terrorists for facial recognition. One of them had his assistant send live camera footage to Curtis Manning, and helped Curtis identify a suspicious, empty briefcase. The forensics agent promised to have the case sent back to CTU on the next transport.
- The forensics CTU agent was played by (uncredited) Scott Alan Smith in "12:00pm-1:00pm."
Driver agent
Driving to the Rockland Building
When Marianne Taylor was revealed to be a corporate spy at CTU, she agreed to access the files of her deceased contact, Henry Powell, in an effort to decrease her sentence. A field agent drove her, Curtis Manning, and another agent to the Rockland Building where Powell's computer was located. Before she could access the evidence, three of Powell's accomplices (Forbes, Adam, and Jason) entered, killed the driver, the other agent, and Marianne, and captured Curtis. According to Forbes, the three bodies were placed in a van afterward.
- The driver was played by Andrew Putney in "4:00pm-5:00pm."
Michelle Dessler's assistant
Giving Michelle Dessler a summary update
An agent informed Michelle Dessler that no radiation was emitted when the nuclear missile was destroyed over Los Angeles, and that there were no casualties despite some damage from the wreckage.
- The CTU agent appeared in "6:00am-7:00am."
Day 5
Female Sentox survivor
Assisting the survivors in the Situation Room
This CTU staffer was briefed by Bill Buchanan at around 10:10am, where she was told to give him an update on the deployment of HRT once Curtis Manning had entered the Ontario Airport terminal. Lynn McGill interrupted their meeting.
Later, she was among the CTU employees who made it to the Situation Room during the Sentox terrorist gas attack. While Chloe O'Brian was still in shock from the death of Edgar Stiles, this CTU worker pulled up the video feed from the medical clinic where Tony Almeida was holding Rick Burke at gunpoint, hoping to kill Christopher Henderson. She informed Jack, Audrey, and the other personnel in the room that they could hear the events in the clinic, but they could not be heard themselves. Eventually, she managed to activate two-way audio so Jack could try to talk Tony out of killing Henderson.
- The staffer was played by background extra Tracie Dominguez in "10:00am-11:00am", "6:00pm-7:00pm," "7:00pm-8:00pm," "10:00pm-11:00pm", and several other episodes.
Airport footage agent
Searching for the yellow-tie man
Following the hostage crisis at the Ontario Airport, Agent Manning asked an agent in a tactical van to prepare the airport's recent security camera recordings. At roughly 11:05am they sorted through various camera angles and found footage showing the yellow-tie man suspected to be a sleeper terrorist. The agent displayed footage until they saw the terrorist walking inside Hangar BB. Curtis left him with a field team to investigate.
- The CTU agent was played by Eric Strikland in "11:00am-12:00pm."
Archives worker
Searching Audrey's phone records for Lynn
Under intense pressure from President Charles Logan, Lynn McGill irrationally forced some of the agents at CTU Los Angeles to follow leads without his knowledge. McGill called this archives worker to check the phone logs of Audrey Raines, suspecting that she had called Jack Bauer. The worker pulled up the log, and sent it to McGill's computer. However, it was quickly wiped by Chloe O'Brian.
- The archives CTU worker was played by Tony Wayne in "3:00pm-4:00pm."
- Tony Wayne also played bullpen analyst Robin Powers during several other seasons.
Sentox gas victim
Pleading for her life
After Ostroff released Sentox nerve gas at CTU Los Angeles, Jack Bauer and others sealed themselves in the Situation Room. After they had lowered the seals, a female staffer banged on the glass begging them to let her in. Jack explained that they couldn't and she had to find another exit, however it wasn't long before she collapsed agains the door, dead.
- The Sentox gas victim appeared in "6:00pm-7:00pm".
Stenger escort agent
As Jack and Curtis escorted Collette Stenger into CTU Los Angeles, one of the accompanying CTU agents informed Jack that Stenger had identified Audrey Raines in photographs on the ride over. This seemed to confirm Stenger's claim that Audrey sold her secret information. It enraged Jack, who threatened Stenger because he knew implicitly that Audrey was innocent.
- The escort agent was played by Tohoru Masamune in "9:00pm-10:00pm."
Day 6
Agent at Wallace residence
Reporting that Scott Wallace is still a hostage
Jack Bauer and Curtis Manning led a CTU field team to the residence of Ray and Jillian Wallace to apprehend Ahmed Amar, a terrorist hiding there. This field agent reported to Jack that Scott Wallace was still being held hostage by Amar. As Jack, Curtis, and the rest of the team went in, Ahmed panicked, fired some shots blindly, and fled. Outside, Jack confronted Ahmed, but when Ahmed aimed his pistol at Jack, the field agent shot him down with his pistol. The wound left Ahmed barely alive. The agent stayed with Ahmed while a medic worked to revive him. At 9:48 he took a written statement from Scott Wallace. Five minutes later, Jack asked the agent where Manning was, but the agent didn't know: Curtis went to go threaten the life of Hamri Al-Assad.
- The field agent was played by Brian D. Johnson in "9:00am-10:00am." It is possible this character's name is Sprague.
SWAT agent
A CTU Los Angeles SWAT team surrounded 4332 Florence Avenue in an effort to capture Abu Fayed, a terrorist ringleader with access to 4 stolen suitcase nukes at the time. When Jack Bauer arrived at the perimeter, he asked to speak with the agent in charge, and one SWAT agent pointed out Hal Turner. During the subsequent raid, Fayed escaped but one suitcase nuke was disarmed and all of the other sub-cell terrorists were killed.
- The SWAT agent was played by Brian Silverman in "1:00pm-2:00pm."
SWAT medic
Tending to Mark Hauser
One of the CTU SWAT agents who went with Jack Bauer and Agent Ryan from 1530 Hillcrest to 8613 Bianca Drive to apprehend Mark Hauser was a medic. Hauser was shot during the raid on his house, and the medic determined that he had serious arterial bleeding. He tended to Hauser until the suspect made a call to draw Dmitri Gredenko out of hiding. Once the call was finished, the medic insisted that Hauser be sent to a hospital.
- The CTU SWAT medic was played by Eric Cazenave in "8:00pm-9:00pm."
Agent at Hauser residence
Assisting Jack with Brady Hauser
A CTU SWAT agent was present with Jack Bauer as he explained to Brady Hauser what he needed to do in a sting operation involving the terrorist Dmitri Gredenko. After Jack gave Brady an earpiece, the agent notified Jack that they were prepared.
- The CTU SWAT agent appeared in "8:00pm-9:00pm."
Bravo team sniper
Preparing to ambush terrorists
Just before Brady Hauser and Dmitri Gredenko met to hand off computer data, Jack asked for all of his field teams to report in. Teams Alpha (agent Ryan), Bravo, and Charlie reported. The Bravo sniper responded for one of the teams. After Charlie sniper shot Gredenko with a tranquilizer dart, and Ryan killed the first hostile, Bravo sniper shot the second. The final terrorist was killed by Jack Bauer.
- The sniper was played by Jeff Brockton in "8:00pm-9:00pm."
- Jeff Brockton also portrayed a number of other characters.
Charlie team sniper
Knocking out Gredenko with a dart
Just before Brady Hauser and Dmitri Gredenko met to hand off computer data, Jack asked for all of his field teams to report in. Teams Alpha, Bravo, and Charlie reported. The Charlie sniper responded for one of the teams. After Brady dropped low, out of his line of fire, the sniper shot Gredenko with a tranquilizer dart. (Agent Ryan then killed the first hostile, Bravo sniper shot the second, and the final terrorist was killed by Jack Bauer.)
- The sniper was played by Chris Gann in "8:00pm-9:00pm."
- Chris Gann also portrayed a number of other characters.
Day 8
Interrogation specialist
Monitoring Meredith Reed's interrogation
This agent monitored Meredith Reed's interrogation conducted by Brian Hastings. When Hastings was about to walk in, the specialist instructed him to ask a few base questions first so he could get a reading on Reed's biological responses. When Hastings questioned Reed regarding her meetings with Hassan, the specialist noticed she was withholding information because of her vital signs. Later, when Dana Walsh realized that Jack Bauer was having illegal access to the armory in CTU, she told the specialist to interrupt Hastings interrogation.
At around 7:00am, he also monitored Dana Walsh's interrogation by Jack Bauer. When Jack came out of the room, the specialist assessed that Dana's biometric readings were stable, which meant that she wasn't lying.
- The interrogation specialist was played by Chris Butler in "5:00pm-6:00pm." and "7:00am-8:00am"
Agent 1
Agent talking with Brian Hastings.
This agent approached Brian Hastings and gave him a keycard he had retrieved from Meredith Reed's personal belongings. He told Hastings that the keycard gave Reed access to President Omar Hassan's personal residence. After 11:00pm, he told Cole Ortiz that Mr. Hastings wanted to talk with him.
- The "CTU Agent #1" was played by J.R. Ramirez in "6:00pm-7:00pm." and in "11:00pm-12:00am"
Agent with Farhad Hassan
Agent trying to stop Farhad Hassan.
This agent escorted the family of Omar Hassan outside of the United Nations building. After a bomb went off that threatened Omar Hassan's life, the agent tried to radio for the status of Omar. When he did not get an answer, Dalia Hassan shouted for him to try again. Soon after, Farhad Hassan got out of the car. However, the agent got out and stopped him, until Farhad stabbed him in the neck with a pen. The agent stumbled onto the car, bleeding in front of Dalia and Kayla Hassan, and soon died.
- The Agent was played by Anthony Molinari in "6:00pm-7:00pm" and "7:00pm-8:00pm".
Staffer announcing NSA
Agent notifying Brian Hastings about the NSA.
After an EMP destroyed all electrical systems within CTU New York, this agent approached Brian Hastings to notify him that a team from NSA had arrived. Later, at 7:00am, she informed Hastings of a call from President Allison Taylor.
- The "CTU Worker #2" was played by Naomi Morales in "4:00am-5:00am" and "7:00am-8:00am".
Agent evacuating visitors
Agent notifying Brian Hastings about the NSA.
After an EMP destroyed all electrical systems within CTU New York, this agent gathered all visitors and non-essential personnel and instructed them to go with Agent Combs, who would take them out of the building. Dana Walsh interrupted her and asked to talk with Bill Prady.
- The "CTU Agent #1" was played by Kaitlyn Benson in "4:00am-5:00am".
Staffer announcing Bill Prady
Staffer notifying Brian Hastings about Bill Prady.
At around 4:40am, this staffer approached Brian Hastings to notify him that a probation officer called Bill Prady wanted to talk to him. Hastings told him to put Prady in Holding 2 and tell him he'd talk to him in 15 minutes.
- The "CTU Worker" was played by D. Kevin Kelly in "4:00am-5:00am".
SWAT sniper
Eliminating terrorist lookouts.
At around 7:52am, this sniper - along with Cole Ortiz - eliminated two terrorist lookouts on the roof of the apartment project where terrorist Samir Mehran was holding President Omar Hassan.
- The "CTU SWAT Sniper" was played by Jerald Vincent in "7:00am-8:00am".
SWAT agent at United Nations
Talking to Jason Pillar.
This agent was protecting the perimeter around the United Nations building during the signing of the peace treaty. He was stationed near the Hart Building when Jason Pillar drove there. After presenting his ID, the agent asked Pillar what he was doing. Pillar told him he was running a last minute security check. The agent verified the ID and let him in.
- The "CTU SWAT #1" was played by Demond Robertson in "2:00pm-3:00pm".
Multiple-season agents
Division agent
Searching for Chappelle.
CTU Division Supervisor Brad Hammond came to CTU Los Angeles with a number of agents when Ryan Chappelle disappeared. One of Hammond's agents who was searching with Carrie Turner found Chappelle drugged in a holding room.
Assisting Michelle
The agent from Division was also present with Michelle Dessler and her CTU team when they arrived at the Chandler Plaza Hotel to contain the spread of the Cordilla virus. He was hesitant when Michelle, Gael Ortega, and the others chose to enter the hotel unprotected, but soon followed. He later guarded the main entrance door, and one guest became irate because the agent refused to let him exit the hotel. This agent may or may not have become infected with the virus.
- The Division agent was played by Bruce Nozick in "Day 2: 6:00am-7:00am," "Day 3: 3:00am-4:00am" and "Day 3: 4:00am-5:00am."