Roleplaying VS Pvp

Hi,

Just curious to know more details about this?
I wish to roleplay, but also be able to PK (anytime) i want, if thats possible.

And if they exist, advantages and disadvantages for each one?

Thanks

in this game, the terms rp character and pvp character don't mean one that rp's and one that doesn't

it refers to whether or not you are using one of the premade toons that are available for pvp only or whether you are using one that you leveled up to 20...the ones you level up to 20 can pvp, rp, or whatever