1. Chris Pratt
Chris Pratt went from lovable goofball Andy Dwyer in Parks and Recreation to full-blown action hero in Guardians of the Galaxy. Through intense workouts and a strict diet, he lost over 60 pounds.
His lean, muscular build became a Hollywood standard overnight. Pratt’s transformation wasn’t just physical, it launched a whole new phase of his career. He’s now known for balancing charm with blockbuster muscle.