Now, granted, we haven't seen everything Amanda Peet has been in. That being said...
Why does she always play the bitch?
Peet's most prominent role was in "The Whole Nine Yards": bitch. The abhorrent "Saving Silverman": bitch. Woody Allen's "Melinda and Melinda": bitch. Even her early turn as one of Seinfeld's girlfriends (she is the one who lives with "a dude"): bitch.
Is it something about her personality? Is it her deep-set eyes? Is it just typecasting? Or...
Or let's just say that even though Peet is half Quaker, she considers herself Jewish, and stop worrying about her career choices.