"Nadia Yassir (Urdu: \u0646\u0627\u062F\u06CC\u06C1 \u064A\u0627\u0633\u0631\u200E) is a fictional character from the TV series 24 played by Marisol Nichols. Introduced in Season 6, she works for the Counter Terrorist Unit at Los Angeles, a fictional domestic branch of the Central Intelligence Agency. For a short time in the sixth season, she replaces Bill Buchanan as the Director of CTU after he is fired."@en . "Nadia Yassir"@en . . . . "Day 6 \u2013 Episode 1" .