|Residence(s):||Los Angeles, California|
|Affiliation:||Counter Terrorist Unit|
|Profession:||Intelligence agent, CTU LA|
|Played by:||Lana Parrilla|
At the start of Day 4, Sarah was an analyst at CTU, working closely with Chloe O'Brian, Edgar Stiles, and Marianne Taylor. It is believed she often fought with Chloe, because Chloe told her something and Sarah called her a bitch. CTU Director Erin Driscoll told her to spy on Chloe, because she believed Chloe was acting with Jack Bauer. Later in the day, when Chloe was escorted out due to working with Jack and stealing satellite, Chloe told Sarah that she was insulted more than mad. She said to use a Newman filter when pipelining someone's system so that they don't see red lights flashing everywhere. Later, Marianne, a mole at CTU working for the company McLennen-Forster, believed her cover to be threatened, she planted evidence implicating Sarah as the mole, and Sarah was promptly taken into custody.
When Sarah denied any knowledge of this, Erin authorized the use of torture to get her to cooperate. During the interrogation, she was subjected to electric shock. It is assumed that she was also subjected to a chemical, possibly hyoscine-pentothol. Edgar eventually discovered evidence revealing Marianne as the true mole and Sarah was released.
Sarah would later demand expungement of the incident and a two-level pay grade promotion from Driscoll as compensation for her ordeal. Driscoll agreed, but she stepped down as director of CTU later that day due to her daughter's suicide. When Sarah approached Driscoll's replacement, Michelle Dessler, to confirm the deal, Michelle was unreceptive and relieved her of duty, claiming she does not trust Sarah to be focused. Sarah was escorted out of the building by security, Sarah told Michelle that she'd be sorry for it. Chloe (who had been relieved of duty by Driscoll for insubordination earlier that day) was reinstated to replace her.
- Sarah Gavin: Please stop.
- Erin Driscoll: If you want it to stop, then tell me where the Dobson Override is and who has it. ("Day 4: 2:00pm-3:00pm")
- Sarah Gavin: Ms. Driscoll, I'm not a spy. I'm not. Please believe me. ("Day 4: 2:00pm-3:00pm")
Sarah Gavin: Eric no please don’t do this Eric Ms. Driscoll. (Day 4: 2:00pm-3:00pm)
Background information and notes
- Sarah is one of two characters along with Curtis Manning to be elevated to the main cast in the middle of a season.