Alright, folks, here's an entirely NEW look-alike (believe me, i looked)
her name is Ann Cusack, and yes, she is a sister to John and Joan and Susie and Bill Cusack....now, I realize that Amanda is considerably younger, but it really looks like Amanda could be Ann's daughter....I just saw Ann (who's imdb profile is below) on Grey's Anatomy S2E19 as the wife of the man with the heart issue (i don't remember exactly what it was). But as she spoke, all i could think was "wow, she reeeally looks like an older version of Amanda Crew..."
http://www.imdb.com/name/nm0193639/bio
Destinations are constantly met, day after day.