TV's biggest casting changes

Published On: Jun 09 2011 03:17:17 PM CDT   Updated On: Jan 03 2013 01:00:00 AM CST

Take a look back at some of the more memorable casting changes in the history of television.

Ashton Kutcher
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Mario Anzuoni/Reuters

Ashton Kutcher, no stranger to TV sitcoms thanks to his run on "That '70s Show," stepped into the hole left by Sheen's firing, playing Internet billionaire Walden Schmidt.

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