|Significant other(s):||Simone Al-Harazi (girlfriend)|
|Death date:||Day 9: 12:59pm|
|Death cause:||Stabbed by Simone Al-Harazi|
|Played by:||Joseph Millson|
|First episode:||"Day 9: 11:00am-12:00pm"|
|Last episode:||"Day 9: 12:00pm-1:00pm"|
Derrick Yates was a British computer hacker who was responsible for hacking a drone used by the U.S. military and causing the deaths of four soldiers, staging it as an act of friendly fire. Yates had also been in possession of a device that allowed him to hack into military drones, which he intended to sell to Margot Al-Harazi.
Before Day 9Edit
Yates had previously been working for Adrian Cross, the leader of the organization Open Cell, but was let go because of his greed, selling data to the highest bidder and hacking into military weapons systems. Just before leaving the organization for good, he stole Cross' plans for a defense override module designed to hack into any military system in the world, and used it to construct a modified version designed specifically to control American drones.
Yates hacked a MQ-1 Predator drone in Afghanistan. He caused it to fire a AGM-114 Hellfire missile, killing four soldiers in an act of supposed friendly fire. Two of the dead officers were British. He framed Lieutenant Chris Tanner for the attack. Just before 12:00pm Yates called his conspirator, telling them "it is done." ("11:00am-12:00pm")
The conspirator, Margot Al-Harazi, called him back later, impressed with his work of hacking the drone. They arranged a meeting place to exchange the device for his money. However Yates and his 'Eastern European' girlfriend, Simone Al-Harazi, were forced to flee when Jack Bauer tracked him down at his drug dealer Basher's house. At the meeting place, Yates revealed to Simone that he believed Margot double-crossed him, and so was going to start searching for another buyer for his device.
Yates went to the bathroom and Simone followed him in. Behind his back, she pulled out a knife, stabbing him through the side of the head and killing him instantly. Unbeknownst to Yates, Simone was actually the daughter of his conspirator, who had been posing as his girlfriend in order to get the device. ("12:00pm-1:00pm")
Moments later, Jack Bauer found Yates dead in the bathroom, and realized that Simone was his murderer. ("1:00pm-2:00pm").