Sherry Palmer was the wife of David Palmer until their divorce. She had two children, Keith Palmer and Nicole Palmer. Her brother-in-law was Wayne Palmer and she had a sister-in-law, Sandra Palmer. During the course of Day 1, Sherry transitioned from supportive to disagreeing to outright defiant of her husband; following this, Sherry was divorced. She was secretly a member of the Los Angeles nuclear attack conspiracy during Day 2 and aided Jack Bauer in taking down the mastermind of the plot. Sherry was recruited by her ex-husband to clean house during Alan Milliken's rebellion against him during Day 3; after pressuring Julia Milliken into aiding in Alan's death, she was shot and killed by Julia.