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Lesser-Known Hollywood Siblings

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Casey Affleck

Famous sibling: Ben Affleck

Three years junior to brother Ben, Casey has made his own name in the Hollywood biz. Despite starting off his career with a role alongside his brother in "Good Will Hunting," he proceeded to star in other films such as "American Pie" and "Ocean's Eleven." Casey's fame is only growing as he stars in the recently released film "The Finest Hours." —XFINITY Entertainment Staff (Photo: Jason Kempin/Getty Images)

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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