Chris Pratt, Guardians of the Galaxy
During his time at Parks and Recreation Pratt was a known to be a little chubby, but when he got his role in Marvel’s Guardians of the Galaxy, he started working out intensively and switched his diet – and managed to lose 60 pounds (27 kg) in just six months.
“Three or four hours a day of just consistent, ass-kicking hard work”, Pratt described his new regime to Men’s Health Magazine.