Sweet Joey Potter of "Dawson’s Creek" and the take-no-prisoners Buffy of the "Buffy the Vampire Slayer" could have been the same person. However, Katie Holmes declined the role to finish high school.
17 Actors Who Turned Down Career-Changing, Iconic Roles
Carey Mulligan has passed on playing Hillary Clinton in "Rodham." What other actors have passed on iconic role?
