The famous actress known for her role in the film "Breakfast at Tiffany's" is Audrey Hepburn. Hepburn’s portrayal of Holly Golightly became iconic and exemplified her unique style and charm. Beyond acting, she was also a humanitarian, serving as a UNICEF Goodwill Ambassador and advocating for children's rights worldwide. Her contributions to both cinema and humanitarian work made her a beloved figure, symbolizing grace and compassion throughout her career and beyond.