Take a look back at some of the more memorable casting changes in the history of television.
James Spader replaced Carell, playing the intense Robert California. However, California did not fill the Michael Scott's position of regional manager of Dunder Mifflin -- that position went to Ed Helms' Andy Bernard. Instead, Spader's character became the CEO of the paper company, but lasted only one season.
Boy Scouts of America
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Library of Congress
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