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Chaske Spencer
Chaske Spencer underwent a huge physical transformation to portray alpha wolf Sam Uley in "The Twilight Saga: New Moon" (2009), the second chapter in the highly-successful "Twilight" (2008) franchise. The theater-trained actor appeared in a few feature films and television projects before landing the role of a lifetime in "New Moon," where he packed on 25 pounds of muscle to play the ominous leader of the Wolf Pack. Spencer did not just play up the physical aspects of his "New Moon" role; he showed the sympathetic human inside his animalistic character and delivered an emotional breakout performance that deservedly put his immense talent and charisma on the map.