Once and Again is an American family drama television series that aired on ABC from September 21, 1999, to April 15, 2002. It depicts the family of a single mother and her romance with a single father. It was created by Marshall Herskovitz and Edward Zwick.

Marshall Schreiber Herskovitz is an American film director, writer, and producer, and currently the President Emeritus of the Producers Guild of America. Among his productions are Traffic, The Last Samurai, Blood Diamond, and I Am Sam. Herskovitz has directed two feature films, Jack the Bear and Dangerous Beauty. Herskovitz was a creator and executive producer of the television shows thirtysomething, My So-Called Life, and Once and Again, and also wrote and directed several episodes of all three series.