Jack Bristow is a fictional character from the television series Alias, which aired from 2001 to 2006. He is portrayed by actor Victor Garber and serves as a key figure in the show's narrative. Jack is a former CIA operative and the father of the main character, Sydney Bristow. His complex personality and moral ambiguity often put him at odds with both allies and enemies. Throughout the series, Jack is depicted as a highly skilled strategist and a protective father. He navigates the dangerous world of espionage while trying to keep his daughter safe. His character is known for his intelligence, resourcefulness, and deep commitment to his family, making him a pivotal part of the storyline.