Stephanie Morgenstern is a Canadian actress, filmmaker, and screenwriter for television and film. She has worked extensively on stage, film, and television in both English and French. Her most widely seen feature film credits have been The Sweet Hereafter, Maelström, Julie and Me (Revoir Julie) and Forbidden Love. Morgenstern is also widely recognized by anime fans as the voice of Sailor Venus in the DIC Entertainment English dub of Sailor Moon in the first few seasons as well as the movies. Additionally, she provided the voice of Regina in the Dino Crisis series, and Yin in Yin Yang Yo!.

Along with her writing partner and husband Mark Ellis, Morgenstern created Flashpoint, a Canadian TV police drama which premiered July 2008 on CTV and CBS, and ran for five years before the show ended by creative choice in 2012. The show was awarded the Academy Board of Directors Tribute for Outstanding and Enduring Contribution to Canadian Television,^{[citation needed]} in addition to both a Gemini and Canadian Screen Award for Best Dramatic Series.^[1] Flashpoint has been sold to over 50 countries outside of Canada and the U.S.^[2] Most recently, they were showrunners on Allegiance (CBC/NBCUniversal), a police procedural set in Surrey, BC.

She and Mark Ellis were also co-creators and showrunners on X Company, a WWII espionage thriller set in France, Germany and Canada. Shot over three years in Budapest, it was also sold to many territories internationally, including France (TF1), UK (History),^[3] the United States (Ovation), Latin America (History), and Japan (Mystery). It was also a Canadian Screen Awards nominee for Best Dramatic Series.^[4]

Morgenstern has been twice nominated for Genie (Canadian Academy) Awards for directing the short film Remembrance, which she also co-wrote and co-starred in with her husband Mark Ellis, and co-directing (with her brother Mark Morgenstern) the short film Curtains, which she also wrote, an in which she played the lead role.

Morgenstern stated in a 2003 interview that she has synesthesia.^[5] She is also a practitioner of Krav Maga martial arts training.^[6]