Sydney's dad, Jack, was a CIA double agent working against SD-6 on this Jennifer Garner show
[DOC] [TLE] Alias - A Brief History - Angelfire [PAR] Sydney worked as a secret agent for SD-6, run by Arvin Sloane, which she 
believed to ... SD-6 is not a covert branch of the CIA, that, in fact, SD-6 is working 
against the CIA.