Sarah Walker (Chuck)

Sarah Walker is a fictional character in the NBC television series Chuck. Portrayed by actress Yvonne Strahovski, Sarah is a highly skilled CIA agent assigned to protect Chuck Bartowski after he inadvertently downloads the Intersect, a computer containing the entire United States' intelligence database, into his brain.

Throughout the series, Sarah operates under numerous cover identities, most prominently as Chuck's girlfriend and later wife. Initially stoic and focused on her mission, Sarah gradually develops genuine feelings for Chuck, leading to conflicts between her professional obligations and her personal desires. Her espionage skills include proficiency in hand-to-hand combat, weapons, disguise, infiltration, and interrogation. She is portrayed as a dedicated and resourceful agent, but also vulnerable and capable of showing deep emotional connection.

Sarah's backstory is gradually revealed throughout the series, highlighting a difficult childhood and complicated relationships within the spy world. Her growth from a detached operative to a woman willing to sacrifice everything for Chuck is a central theme of the show. Her complex past, her evolving relationship with Chuck, and her professional capabilities make her a pivotal and popular character within the Chuck narrative.