Sebastian Stan Endured A Brutal Weight-Loss Process For His Role In 'Pam And Tommy' And Was Told He Had "Body Dysmorphia"

It may not look like Sebastian Stan had to do much work to embody Tommy Lee, drummer of the Motley Crue, but it turns out he had his work cut out for him. He opened up to Entertainment Weekly about what it really took to become the famous musician.

Sebastian Stan Had to Lose a Drastic Amount of Weight For "Pam and Tommy"

Sebastian had to cram in 20,000 steps a day by running regularly, and he drastically changed his diet in order to reach his goal weight. "I was fasting for 16 to 18 hours a day," he says. "And that definitely does something, especially if you're [driving] in traffic." The problem that Sebastian was running into was that he wanted to lose weight, not build any extra muscle, which is why his diet and exercise routine were so brutal.

"I was trying to lose weight and I still felt I didn't lose enough weight," Sebastian told EW. "And people were telling me I was crazy and going, 'You have body dysmorphia now' — which I always did anyway."

This was quite the turn from his work as Marvel's Winter Soldier, for which he had to tack on the muscle and build up his physique. The whole process started to mess with his mind.

"Anybody that even has a healthy physique to some extent has body dysmorphia," he says. "Because once you're going into a peak, the best look possible, which by the way, I don't care what they say, unless there's like, magic formulas out there — which there are but some of us are not in that pocket — your body can only be at peak 100 percent for like maybe a week or something. At least, how I've experienced it; and I mean diet and exercise and tanning and water and lighting and everything. And then you spend the rest of the time going, 'I'm not what I used to be.' But it's just all in the head."

But all in all, Sebastian was "proud of the whole thing." He's probably happy to get back to his normal diet and fitness routine, though.