Gretchen Schwartz is Walter White's former fiancé and chemistry lab partner and now co-owner of Gray Matter Technologies.
Appearances
Breaking Bad
Guest cast, played by Jessica Hecht
- Episode 1x03: ...and the Bag's in the River (Feb 10, 2008)
- Episode 1x05: Gray Matter (Feb 24, 2008)
- Episode 2x06: Peekaboo (Apr 12, 2009)
- Episode 5x15: Granite State (Sep 22, 2013)
- Episode 5x16: Felina (Sep 29, 2013)