1Angelina Jolie - Since 2001, Jolie has been involved in various charity works. She has been on many field missions around the world and helped refugees there and internally displaced persons in about  20 countries, including some third world countries too.

2. George Clooney - Clooney has 
 to stop the genocide occurring in some african countries especially Sudan. He himself visisted the area to spread awareness to stop genocide. His charity has helped millions of genocide victims to get back to life.