Gillian Anderson has revealed before she took on the role of Dana Scully on "The X-Files," producers were considering another Anderson, Pamela. Gillian explained the producers decided on her because they wanted to go down a completely different route. (No kidding!)
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?