What is the fancy literary term for a character who is the opposite of another character?

Answer 1

Foil!

Answer 2

I choose Edward Rochester! 1) What would their username be? Rochester. He wouldn't be into all the cutesy little nicknames. 2) What section(s) would they hang out in? Philosophy, Marriage and Divorce, Books and Authors, and Poetry. 3) Which would they do more of: ask questions or answer 'em? Answering. He's too intelligent not to have the answers, and too prideful not to share them. 4) Do you think they'd add you to their contacts? Or would they block that option for everyone? Would you add him/her if the option was open? I don't think he'd add anyone, really. He's not sociable at all. But I would definitely add him! 5) Would s/he be a regular contributor or a drop-in kind of person? Regular contributor. He doesn't exactly have that much else to do. 6) What kind of questions would they be likely to ask? Fun, humorous, intelligent, simple, thought-provoking, homework-type, troll, etc.? Intelligent and thught-provoking. Maybe a few witty and sarcastic questions if he's in a particularly good mood. 7) Do you think you'd get along with them on here, if you happened to frequent the same sections? Would you develop a healthy internet friendship with them? I think we'd get along. I'd respect him and (hopefully) he'd return some of that respect. He's not easy to get along with all he time, though. He might not like me. As for a healthy relationship, probably not. I'd end up nearly stalking him. 8) Would you -want- your favorite characters to be Y!A users? Yes! That would be a dream come true. Especially Rochester. I'd love to get to know him...

Answer 3

I was thinking "antithesis" but the term "counterfoil" mentioned above fits better.

On daytime Soap Operas, the term is "evil twin".

Answer 4

It's called a foil

Answer 5

The protagonist is the good guy, the antagonist is the bad guy.

Answer 6

I like "Counterfoil".