This article is part of the Counter Terrorist Unit series. Organization District Command Division Command Domestic Units CTU Los Angeles CTU Los Angeles CTU Los Angeles building Mobile video unit Attacks on CTU Los Angeles Nerve gas attack CTU New York CTU New York CTU New York building Mobile Command Unit Personnel Regional District Director Regional District Manager Regional Division Director Administrative Director Special Agent in Charge Chief of Staff Director of Field Operations Security

The CTU Chief of Staff is the second-in-command of a CTU Domestic Unit. Often called Deputy Director, or simply "Number Two". If the Special Agent in Charge of a domestic unit is not available or unfit for command, the Chief of Staff assumes his responsibilities.

CTU Los Angeles Edit

The following is a list of Chiefs of Staff at CTU Los Angeles.

Picture	Name	Served during	Status
	Nina Myers	Day 1	Deceased
	As Jack's closest ally, Nina Myers served as Chief of Staff at CTU Los Angeles during Day 1. When she was exposed as a mole, Nina was fired and charged with treason and the murder of Teri Bauer.
	Tony Almeida	Day 2	Alive
	After Nina Myers was removed, Tony Almeida assumed the position, serving under George Mason. When Mason stepped down due to radiation exposure, Tony was promoted to Special Agent in Charge.
	Michelle Dessler	Days 2, 3	Deceased
	When Tony Almeida was promoted to Special Agent in Charge during Day 2, Michelle got promoted to Chief of Staff. She held the position through most of Day 3. However, when Tony was shot in the neck, Michelle was become acting Special Agent in Charge. After the events of Day 3, Michelle left CTU Los Angeles for CTU Seattle and eventually received a position at Division.
	Curtis Manning	Day 4	Deceased
	Curtis Manning served as Chief of Staff in Day 4 and Day 5, working under Erin Driscoll. Curtis retained the position throughout the day and eventually became Director of Field Operations as well in Day 5 and 6.
	Nadia Yassir	Day 6	Alive
	Nadia Yassir became the Chief of Staff after the events of Day 5. Serving under Bill Buchanan, Nadia lost most of her access at CTU when she was flagged by the Department of Homeland Security. When Buchanan was forced down, he named Nadia acting Director of CTU in the interim.

Background information and notes Edit

• Season 5 is the only season not to feature a Special Agent in Charge/Chief of Staff at CTU. Miles Papazian, who was from the Department of Homeland Security and worked for Karen Hayes, fulfilled an analogous role.
• It is unknown who the Chief of Staff is at CTU New York during Day 8, or if the role even exists after the re-establishment of the agency.