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I know I've seen her in one of my regular shows, but I can't for the life of me figure it out and Twix won't tell me her name!!!

Okay, I found the answer. Her name is Abigail Spencer. She starred in the short-lived series "Angela's Eyes" as Angela. She's also played bit parts on Ghost Whisperer, CSI and Bones. She's apparently got a movie in post-production right now, but I have heard nothing about it.