Billy Crystal is an American comedian and actor who started his career in the 1970s. He rose to fame in the 80s due to his appearances on "The Tonight Show" and "Saturday Night Live". He is also a well-known voice actor, best known for his roles in "Monsters, Inc." and "Monsters University". In the 1990s, Crystal also became a critically acclaimed writer and director with his romantic comedy "When Harry Met Sally". Crystal has gone on to star in films such as "City Slickers" and has hosted the Academy Awards nine times. He continues to perform stand-up and acts in television shows.