There are a few classes which may be played either as good or evil;
Priests, rogues, and mages. However, a few classes are dependent upon
alignment. Rangers and paladins being the most notable of these. Because
of this it is very important to portray your characters as realistically
as possible, so that every ranger and every paladin does not resemble every
other one.
Despite strong loyalties to gods, duty, nature, or whatever, these are still
men and women with mortal foibles and natures. If your character sees
everything in black and white how does he/shereact to situations which
cannot be judged in that way? Does this slow them down, frighten them,
make the question their causes? If every ranger and paladin are played
exactly alike the game is going to get boring fast. So don't forget
that these characters must be played with mortal failings and doubts
to give them more reality and deeper RP.
Priests follow a deity. By nature a priest takes this following very
seriously and his primary goals should be in the pleasing of his deity
and the following of their commandments.
Rogues can develop into bards or thieves on FK. But both have something
in common. Their roguish nature. Generally independent and self-reliant
rogues will be self-confident and cocksure. I always think of Errol Flynn
as a swashbuckling pirate when I think of rogues. Cunning, smart, and very
relaxed personality. This isn't the way it HAS to be. But a rogue should
act like a rogue.
Mages have many powers which can make the both helpful and dangerous.
Mages can range in age and be student or teacher. It would be helpful
to know the background of your mage and the things that drove him/her
to the study of the arcane. Mages are usually well-read and often
well-traveled (at least in their youths). Sometimes they are cryptic,
and in the novels I've read they are rarely direct. If a mage has to
be direct, its usually not a good thing!!