#4. Audrey Hepburn
The Belgium-born actress helped the Dutch resistance during WWII and is widely regarded as one of the most devoted humanitarians in Hollywood History. Her first protagonist role, in William Wyler’s Roman Holiday, made her the first actress to win an Oscar, a BAFTA and a Golden Globe for the same film.
As time went on, she traded the Hollywood spotlight for poverty-stricken African districts, having become a Goodwill Ambassador for UNICEF. Hepburn died from appendiceal cancer in Switzerland at 63 years-old.