She has worked extensively with her writer and producing partner Aaron Harberts on a number of television series including Pushing Daisies and Revenge.

[1] In 2019, the team of Gretchen J. Berg and Aaron Harberts joined Zoey's Extraordinary Playlist on NBC as writers and executive producers.

[8] Berg and Harberts were recruited as executive producers on Star Trek: Discovery, under showrunner Bryan Fuller.

[11][12] Gretchen J. Berg and Aaron Harberts' most recent project is the current NBC musical comedy-drama series Zoey's Extraordinary Playlist.

As an executive producing and writing team, Berg and Harberts help navigate the decisions Zoey must make regarding whether to reveal her secrets, and the resulting impacts on her relationships.