The 27 Fittest Guys of 2012

The Transformer

Even though he won’t need to get in fighting form for his part in the upcoming "Foxcatcher"—a film about gold medal–winning Olympic wrestler David Schultz (that role goes to Mark Ruffalo)—Tatum is no stranger to the art of the transformation. For his breakout role as an underground street fighter in 2009’s "Fighting", Tatum adopted a body weight–training regimen devised by New York–based personal trainer William J. Harris to drop nearly 30 pounds in three weeks. This year, Tatum proved that he’s still got a few tricks up his detachable sleeves in Magic Mike.