Many actors say that they never read their press clippings for fear of seeing something negative or hurtful, but we just know that some of them go ahead and read them anyway.

Now one TV star has admitted that criticism from fans hit home, pushing him to go on a diet and lose 21 lbs.

Dan Stevens, who plays Matthew Crawley in PBS period drama 'Downton Abbey,' told 'The Daily Telegraph' that he hit the gym after he was mocked online.

"I think viewers will notice that I've lost [weight] since the first series," he said. "It's pretty much down to the fact that I had tons of comments on Twitter about how fat Matthew was looking."