4. Jennifer Aniston
Jennifer Aniston turned 25 in 1994, the same year the series Friends aired for the very first time. Friends ran until 2004, so the cast quite literally spent a decade of their lives on the show. 

Prior to her breakout role as Rachel in 1994, she acted in Off-Broadway productions, and had minor roles in a few films. She also acted on a few TV series, including Ferris Bueller, which was based on the film of the same name.