20. JK Rowling
We all know how involved Emma Watson is in charity, but she isn’t the only Harry Potter celeb who gives to back. The brains behind the magical world of Hogwarts, JK Rowling, is also a social activist. We all know that JK Rowling started her way to fame completely by accident, writing out her outrageous ideas on a napkin – but little did she know how successful her story was going to be! And ever since her books took off, she has been giving back to varied causes. In 2017 alone the author donated nearly $160 million to different charities.

The Harry Potter author is the founder of two charity organizations working to help children in different causes. Perhaps the reason she gives so much to charity is because once she was in that place – before her books brought her fame and fortune, JK Rowling came from a poor life, and she was on the verge of poverty. Her fame came one day with her ideas, which she had no idea would bring her so much money. And so she gives back as much as she can, to express her gratitude.