Special Agent Kari Dell was one of the FBI agents working with Thomas Hadley in his quest to find and arrest Jack Bauer. Thomas held a conference with agents Dell, Markinson, and Kilner after Rod O'Leary tasked him with finding Bauer shortly after Day 8. While Kilner pointed out that Bauer wasn't a criminal, Dell objected when she showed him the warrant for his arrest. Later, after Bauer found Kilner and took him hostage, Dell assisted Hadley as he and Markinson tried to run Bauer's vehicle off the road. When Bauer fled New York City, Dell and the other agents questioned dozens of witnesses in an office building Bauer went inside in order to acquire a chopper. Both Dell and Markinson grew suspicious of Kilner's behavior, pointing out that he didn't even try to kill Bauer, before the agents