Charlie has been married to Ellen Lerner O'Donnell since May 7, 1989.
He has four children. His son, Dennis O'Donnell, works in music publishing. His daughter, Patricia O'Donnell-Rough, manages the Instructional Media Collections and Services for UCLA. His son, Michael O'Donnell, is a set dresser for the movie industry. And his daughter, Bridgid O'Donnell, is a digital motion picture restoration artist.
He is most famous as Dick Clark's announcer/sidekick on American Bandstand.