Maria Ehrich (born 26 February 1993) is a German actress. She appeared in more than twenty films since 2003 including her role as Gwendolyn "Gwen" Shepard in the Ruby Red film series based on the book. Maria Ehrich (born 26 February 1993) is a German actress. She appeared in more than twenty films since 2003 including her role as Gwendolyn "Gwen" Shepard in the Ruby Red film series based on the book.