Something that I'm not sure about from the OP.
How will the other players (not PCs) react to an evil PC in the group? Does this interfere with the other player's (not PCs) fun?
Most likely the best course of action is to talk with the other players about the change and get them involved. I know many players who prefer heroic/good campaigns, and an evil PC would cause immediate group strife. Before the discussion, remind them to have their characters act as if they don't have the knowledge you're about to discuss.
If, on the other hand, the other players enjoy gray moral campaigns, then this is an non-issue.
I guess my main point is "don't be the person who says, 'but I'm just playing my character'" when the other players stop having fun because they feel blind-sided and not playing the type of game they want to be playing. Personally, I think it sounds like you have an awesome character concept and it would work well with about half of the players I've DM'ed; and it would work very poorly for the other half (here poorly means that it would actively interfere with the players ability to have fun).
How will the other players (not PCs) react to an evil PC in the group? Does this interfere with the other player's (not PCs) fun?
Most likely the best course of action is to talk with the other players about the change and get them involved. I know many players who prefer heroic/good campaigns, and an evil PC would cause immediate group strife. Before the discussion, remind them to have their characters act as if they don't have the knowledge you're about to discuss.
If, on the other hand, the other players enjoy gray moral campaigns, then this is an non-issue.
I guess my main point is "don't be the person who says, 'but I'm just playing my character'" when the other players stop having fun because they feel blind-sided and not playing the type of game they want to be playing. Personally, I think it sounds like you have an awesome character concept and it would work well with about half of the players I've DM'ed; and it would work very poorly for the other half (here poorly means that it would actively interfere with the players ability to have fun).