Kristen A. Johnston (born September 20, 1967) is an American Emmy Award-winning stage, film, and television actress. She may be most famous for her Emmy Award winning role as Sally Solomon in the television series 3rd Rock from the Sun. She also starred as Wilma Flintstone in the sequel to the live-action movie adaptation of The Flintstones animated series. Johnston is also known for her tall 6 ft (1.83 m) frame and relatively deep voice for an actress. In 2005, Johnston was also featured in six episodes of NBC's ER.