My story, set in the future, is about the journey of a young woman working in an anti-fascist resistance movement in New York City in an ex-USA split up into four different countries (NYC being in the Atlantic States of America). With her dedication to working in this secretive underground organisation, she has limited contact with anyone outside the Resistance and I'm wondering how I can fit an antagonist into this situation, one who she interacts with regularly. I already have another character who turns out to be a double-agent spy for the neo-Nazi government, but the way I've built her character means she can't really be considered a villain in the sense that she's mostly an antagonistic force to my main character with mostly negative interactions with her, and who tries to obstruct her progress and development - because that's definitely not who this double-agent character is, she actually becomes a close friend of my main character and was blackmailed into her position spying for the Nazis. There's obviously 'the system' as an antagonistic force, but I didn't want to leave it at that without creating any antagonistic, villainous characters. Do any of you have any good ideas as to how I can create this antagonist in the situation I have in my story?