Diane Sawyer is a renowned American television journalist who has been in the industry for over four decades. She is best known for her work as an anchor and correspondent for ABC News, where she has served as the anchor of ABC World News and Primetime. She is also well-known for her investigative reporting, which has earned her numerous awards, including three Emmy Awards and a Peabody Award. Her nickname, 'Sawyer, ' is derived from her maiden name.