Gina Hecht ( / ˈ ɡ iː n ə ˈ h ɛ k t / ; born December 6, 1953) is an American actress . She was born in Houston, Texas ,  the daughter of stage actress Pauline Hecht ,  and decided to embark on a career as an actress at the age of ten. After high school she earned a degree from the University of North Carolina School of the Arts . Her big break came in 1979 when she was hired for the role of Jeanie DaVinci on the successful TV series Mork & Mindy .  Her first film role was in the 1982 Ron Howard movie Night Shift , alongside Henry Winkler and Michael Keaton .