Sure, rogue/assassiny character is no problem. Just keep in mind that these character will essentially start at lvl 0, developing their skills as the adventure progresses.

As for the races, that certainly depends. We might not be super keen on a crazy uncommon/'monster' race that stands out like a sore thumb (examples being Tieflings or minatours) in a land dominated primarily by racist humans, racist elves, racist dwarves, and everyone in between The starting village will be small and isolated so you'd need a good reason for why your particular character was there to begin with. Now, if you [i]had[/i] a good reason or perhaps if the race was uncommon but still had a more 'normal' appearance (example being Moon Elves), we may be inclined to accept!

In summary, if you have a good pitch then go ahead and send us the character (or your idea) via PM or post it here and we'll tell you our thoughts!