Robin Williams once said, "You're only given one little spark of madness. You mustn't lose it." Today, on what would have been his 64th birthday, we celebrate the Academy Award-winning actor and comedian for sharing his spark with the world. Williams stole the hearts of viewers with his stand out performances in Aladdin, Dead Poets Society, and Mrs. Doubtfire, just to name a few. His legacy continues to touch fans and leave them doubled over in laughter. Now, just as he will live forever through his films, some have taken it further and immortalized him in ink. Check out these stellar tattoos featuring Williams in some of his famous roles below.