In the late 1970s, Soucie appeared in several television "movies of the week", including The Incredible Journey of Doctor Meg Laurel. However, she soon experienced disappointment with the physical restrictions of on-camera acting. In 1986, came her first voice-over job for three different girls on Rambo: The Force of Freedom. Having started her voice acting career, the following year, Soucie played Janine Melnitz on The Real Ghostbusters, taking over the role from Laura Summer.