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The 10 Most Extreme Actor Body Transformations in Hollywood History

From shedding 60 pounds of muscle to dangerous rapid weight gains, here are the 10 most extreme physical transformations actors endured for a role.

5 Oct 2026

4 Min Read11 Slides
  1. Christian Bale skeletal frame with visible ribs and sunken chest in The Machinist.
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From shedding 60 pounds of muscle to dangerous rapid weight gains, here are the 10 most extreme physical transformations actors endured for a role.

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©TMDb / Paramount Classics

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