Superheroes need a super trainer. Chris Hemsworth and Scar Johansson called on Duffy Gaver, no-nonsense bad@ss and former Navy SEAL. He turned them into Thor and the Black Widow.
Duffy Gaver has built some bad@ss celebrity bodies, including those of Brad Pitt and Channing Tatum. Only you'd never hear it from him. Despite being one of Hollywood's elite trainers, Duffy attacks his job with a humble, down-to-earth, hard-as-nails, move-your-butts attitude.
Scarlett Johansson and Chris Hemsworth just graduated from the School of Duffy with degrees in crushing faces, pulverizing villains, and avenging the planet. The ex-Navy SEAL shows us how he helped Hemsworth put on 25 pounds of Thor-muscle and turned Johansson into a lean, mean, bad-guy-busting machine.