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								| Computer Engineers at CTU 
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			| Day 1 
 Jamey Farrell
 
 
 
 Jamey Farrell, was one of CTU's engineers during Day 1. She was working with Milo Pressman, and Tony Almeida. She was a mole working with Ira Gaines. She was caught and supposedly committed suicide, until Jack realized Nina Myers was another mole who had killed Jamey.
 
 Milo Pressman
 
 Milo worked with Jamey and Tony. He was brought into CTU from Microsoft Office in Seattle as a temporary replacement for Jamey. He remained there for the rest of the day. It is presumed that he returns to Microsoft after the crisis is resolved, and a permanent replacement found. He reappers in Season 6.
 
 Tony Almeida
 
 Tony Almeida was another computer engineer in Day 1. After Nina Myers was arrested, he was promoted to Chief of Staff at the end of the day.
 
 Day 2
 
 Paula Schaeffer
 
 Paula Schaeffer was brought into CTU prior Day 2. In a bomb incident at CTU's headquarters, she was badly injured and then died.
 
 Carrie Turner
 
 Carrie Turner was brought into CTU after Paula's departure. She seemed to have dislike against her boss, Michelle Dessler, who was Chief of Staff, and did anything possible to egg her on. She was fired by Tony Almeida, the head of CTU.
 
 Season 2.5: 24 The Game
 
 Sean Walker
 
 Sean was brought into CTU after Carrie Turner was fired. He later was taken hostage by terrorists and killed.
 
 Adam Kaufman
 
 Adam came into CTU after Walker was killed, he remained in this position throughout Day 3 as well.
 
 Day 3
 
 Kim Bauer
 
 Kim applied to the job prior Day 3. She felt she needed to be closer to her father, Jack Bauer.
 
 Adam Kaufman
 
 
 
 Adam joined CTU prior Day 3. He later found out his sister had been affected by the new virus that had been spreading around the country. He left at the end of the day.
 
 Chloe O'Brian
 
 Chloe joined CTU prior Day 3.
 
 Day 4
 
 Chloe O'Brian
 
 Chloe was again at CTU during Day 4.
 
 Sarah Gavin
 
 Sarah Gavin joined CTU under the direction of Erin Driscoll. She was thought to be a mole, and was tortured, later after Driscoll resigned, she complained to Michelle Dessler, who ignored her complaints.
 
 Marianne Taylor
 
 Marianne was Curtis Manning's ex-girlfriend. He didn't like her being there, and demanded her to cooperate after she was discovered as the mole.
 
 Edgar Stiles
 
 Edgar was a computer engineer in this day. He was thought of as a geek, but secretly, his admirer was Chloe O'Brian.
 
 Day 5
 
 Chloe O'Brian
 
 Chloe was still in her position in this day.
 
 Edgar Stiles
 
 Edgar died in a Sentox gas attack.
 
 Morris O'Brian
 
 Morris came in to replace Edgar during this season. He was Chloe's ex-husband.
 
 Day 6
 
 Chloe O'Brian
 
 Chloe is still a computer engineer.
 
 Morris O'Brian
 
 Morris is forced to arm a nuclear bomb and is criticized by Chloe because of it.
 
 Milo Pressman
 
 
 
 Milo returns prior Day 6 and falls in love with Nadia Yassir. He later is shot and killed by Chinese mercenaries who infiltrate CTU.
 
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