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Amanda Seyfried as Karen Smith (“Mean Girls”) replacing Sophie Sheridan (“Mamma Mia!”)
Instead of the level-headed (most of the time), bright Sophie, Kalokairi is home to Karen, the not-so-bright Plastic who bows down to Regina George. She’s marrying Sky just because he’s good looking and can’t actually sing, and getting all three of her potential fathers to come to her wedding wasn’t a cunning plan -- she just found their names and wanted as many people as possible at the ceremony.