The 36-year-old star revealed that he opted for the look as he "got really bored" with his regular hair do, reported USA Today.
"Yes I did it myself, I used clippers. I went through phases. So, I had long hair and a beard. And first I did a facial hair thing. That was fun. I did the mustache. I did a little General Sherman," Pine said of the "Civil War" general with a distinctive receding hairline and beard.