Devon's (Evil or Good) Twin?

I was attending a poker tournament that some of the people from Rainbow hold every two weeks. So, most of the other players were fellow employees. Although, some people brought their wives, friends, freind's wives, etc. It was a fun and fairly typical tournament. The interesting part of the evening was that I swear I met Devon Moore's brunette twin.

She is the wife of one of my coworkers and she looks like she could easily be Devon's sister. On top of that, she acted exactly like Devon. The more I talked to her, the more striking the resemblance in personality, voice, etc. So, once I came to grips with the fact that this was Devon's doppelganger, I wasn't sure which one might be the evil one. The brunette version seemed fairly nice but the one with the darker hair is usually the evil one, right?

(For those of you who don't know Devon Moore, she is old friend and former co-worker of mine at Red Five)