Mark Hamill Tired of 'Star Wars' Fans Getting Duped by Fake Autographs

Mark Hamill is breaking some hearts, but also trying to help his fans not get taken advantage of by those selling fake autographs.

The Star Wars: The Force Awakens star took to Twitter Sunday night and one at a time told fans whether their merch bearing his signature was legit.

"I'm so sorry there's so many fans spending their hard-earned money for fraudulent signatures," Hamill said in a tweet.

Of course, there were some pieces Hamill really did sign through the years; he told fans to look at those examples to see exactly how he signs his name.

Hamill reprises his iconic role as Luke Skywalker in the latest, record-breaking installment of the space adventure series.

Read More: Box Office: 'Star Wars' Nabs Massive $153.5M Christmas, Crosses $1B Globally

As of Sunday, J.J. Abrams' film soared past $1 billion globally faster than any film in history and leads the biggest Christmas weekend ever at the North American box office with $153.5 million for an early domestic haul of $544.6 million.

Hamill's tweets to fans, pointing out real and fake signatures, are listed below:

In a word- NO. I'm so sorry there's so many fans spending their hard-earned money for fraudulent signatures. #FAKE

—Mark Hamill (@HamillHimself) December 27, 2015

That one is REAL- go for it! (but only at a reasonable price!) #Authentic

—Mark Hamill (@HamillHimself) December 28, 2015

Sadly, another fake. Look at the signatures I verified to learn to spot the forgeries for yourself. #BeatTheDealers

—Mark Hamill (@HamillHimself) December 28, 2015

Memorize this REAL signature and you can start spotting the phonies yourself! #BeatTheDealers

—Mark Hamill (@HamillHimself) December 28, 2015

It's REAL- Congratulations! (And glad you liked the movie!) #CBTM #BeatTheDealers

—Mark Hamill (@HamillHimself) December 28, 2015

All REAL!!! #BeatTheDealers

—Mark Hamill (@HamillHimself) December 28, 2015

Because I owe it to all true fans to protect them from being victimized by dishonest dealers! #FightFraud #FansRule

—Mark Hamill (@HamillHimself) December 28, 2015