Good and Evil (television) Television series on ABC; from September 25 to October 31, 1991. The lives of two sisters, one, Genny, is good, a doctor in microbiology, and the other, Denise, is evil, vice president of marketing for their mother’s cosmetic company. Stars Seth Green (David), Teri Garr (Denise), Margaret Whitton (Genny), Mark Blankfield (George), Lane Davies (Dr. Eric Haan), Mary Gillis (Mary).